feat: 新增全局错误透传规则功能

支持管理员配置上游错误如何返回给客户端：
- 新增 ErrorPassthroughRule 数据模型和 Ent Schema
- 实现规则的 CRUD API（/admin/error-passthrough-rules）
- 支持按错误码、关键词匹配，支持 any/all 匹配模式
- 支持按平台过滤（anthropic/openai/gemini/antigravity）
- 支持透传或自定义响应状态码和错误消息
- 实现两级缓存（Redis + 本地内存）和多实例同步
- 集成到 gateway_handler 的错误处理流程
- 新增前端管理界面组件
- 新增单元测试覆盖核心匹配逻辑

优化：
- 移除 refreshLocalCache 中的冗余排序（数据库已排序）
- 后端 Validate() 增加匹配条件非空校验

backend/cmd/server/wire_gen.go

@@ -174,9 +174,13 @@ func initializeApplication(buildInfo handler.BuildInfo) (*Application, error) {
 	userAttributeValueRepository := repository.NewUserAttributeValueRepository(client)
 	userAttributeService := service.NewUserAttributeService(userAttributeDefinitionRepository, userAttributeValueRepository)
 	userAttributeHandler := admin.NewUserAttributeHandler(userAttributeService)
-	adminHandlers := handler.ProvideAdminHandlers(dashboardHandler, adminUserHandler, groupHandler, accountHandler, adminAnnouncementHandler, oAuthHandler, openAIOAuthHandler, geminiOAuthHandler, antigravityOAuthHandler, proxyHandler, adminRedeemHandler, promoHandler, settingHandler, opsHandler, systemHandler, adminSubscriptionHandler, adminUsageHandler, userAttributeHandler)
-	gatewayHandler := handler.NewGatewayHandler(gatewayService, geminiMessagesCompatService, antigravityGatewayService, userService, concurrencyService, billingCacheService, usageService, apiKeyService, configConfig)
-	openAIGatewayHandler := handler.NewOpenAIGatewayHandler(openAIGatewayService, concurrencyService, billingCacheService, apiKeyService, configConfig)
+	errorPassthroughRepository := repository.NewErrorPassthroughRepository(client)
+	errorPassthroughCache := repository.NewErrorPassthroughCache(redisClient)
+	errorPassthroughService := service.NewErrorPassthroughService(errorPassthroughRepository, errorPassthroughCache)
+	errorPassthroughHandler := admin.NewErrorPassthroughHandler(errorPassthroughService)
+	adminHandlers := handler.ProvideAdminHandlers(dashboardHandler, adminUserHandler, groupHandler, accountHandler, adminAnnouncementHandler, oAuthHandler, openAIOAuthHandler, geminiOAuthHandler, antigravityOAuthHandler, proxyHandler, adminRedeemHandler, promoHandler, settingHandler, opsHandler, systemHandler, adminSubscriptionHandler, adminUsageHandler, userAttributeHandler, errorPassthroughHandler)
+	gatewayHandler := handler.NewGatewayHandler(gatewayService, geminiMessagesCompatService, antigravityGatewayService, userService, concurrencyService, billingCacheService, usageService, apiKeyService, errorPassthroughService, configConfig)
+	openAIGatewayHandler := handler.NewOpenAIGatewayHandler(openAIGatewayService, concurrencyService, billingCacheService, apiKeyService, errorPassthroughService, configConfig)
 	handlerSettingHandler := handler.ProvideSettingHandler(settingService, buildInfo)
 	totpHandler := handler.NewTotpHandler(totpService)
 	handlers := handler.ProvideHandlers(authHandler, userHandler, apiKeyHandler, usageHandler, redeemHandler, subscriptionHandler, announcementHandler, adminHandlers, gatewayHandler, openAIGatewayHandler, handlerSettingHandler, totpHandler)

backend/ent/client.go

@@ -20,6 +20,7 @@ import (
 	"github.com/Wei-Shaw/sub2api/ent/announcement"
 	"github.com/Wei-Shaw/sub2api/ent/announcementread"
 	"github.com/Wei-Shaw/sub2api/ent/apikey"
+	"github.com/Wei-Shaw/sub2api/ent/errorpassthroughrule"
 	"github.com/Wei-Shaw/sub2api/ent/group"
 	"github.com/Wei-Shaw/sub2api/ent/promocode"
 	"github.com/Wei-Shaw/sub2api/ent/promocodeusage"
@@ -52,6 +53,8 @@ type Client struct {
 	Announcement *AnnouncementClient
 	// AnnouncementRead is the client for interacting with the AnnouncementRead builders.
 	AnnouncementRead *AnnouncementReadClient
+	// ErrorPassthroughRule is the client for interacting with the ErrorPassthroughRule builders.
+	ErrorPassthroughRule *ErrorPassthroughRuleClient
 	// Group is the client for interacting with the Group builders.
 	Group *GroupClient
 	// PromoCode is the client for interacting with the PromoCode builders.
@@ -94,6 +97,7 @@ func (c *Client) init() {
 	c.AccountGroup = NewAccountGroupClient(c.config)
 	c.Announcement = NewAnnouncementClient(c.config)
 	c.AnnouncementRead = NewAnnouncementReadClient(c.config)
+	c.ErrorPassthroughRule = NewErrorPassthroughRuleClient(c.config)
 	c.Group = NewGroupClient(c.config)
 	c.PromoCode = NewPromoCodeClient(c.config)
 	c.PromoCodeUsage = NewPromoCodeUsageClient(c.config)
@@ -204,6 +208,7 @@ func (c *Client) Tx(ctx context.Context) (*Tx, error) {
 		AccountGroup:            NewAccountGroupClient(cfg),
 		Announcement:            NewAnnouncementClient(cfg),
 		AnnouncementRead:        NewAnnouncementReadClient(cfg),
+		ErrorPassthroughRule:    NewErrorPassthroughRuleClient(cfg),
 		Group:                   NewGroupClient(cfg),
 		PromoCode:               NewPromoCodeClient(cfg),
 		PromoCodeUsage:          NewPromoCodeUsageClient(cfg),
@@ -241,6 +246,7 @@ func (c *Client) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error)
 		AccountGroup:            NewAccountGroupClient(cfg),
 		Announcement:            NewAnnouncementClient(cfg),
 		AnnouncementRead:        NewAnnouncementReadClient(cfg),
+		ErrorPassthroughRule:    NewErrorPassthroughRuleClient(cfg),
 		Group:                   NewGroupClient(cfg),
 		PromoCode:               NewPromoCodeClient(cfg),
 		PromoCodeUsage:          NewPromoCodeUsageClient(cfg),
@@ -284,9 +290,10 @@ func (c *Client) Close() error {
 func (c *Client) Use(hooks ...Hook) {
 	for _, n := range []interface{ Use(...Hook) }{
 		c.APIKey, c.Account, c.AccountGroup, c.Announcement, c.AnnouncementRead,
-		c.Group, c.PromoCode, c.PromoCodeUsage, c.Proxy, c.RedeemCode, c.Setting,
-		c.UsageCleanupTask, c.UsageLog, c.User, c.UserAllowedGroup,
-		c.UserAttributeDefinition, c.UserAttributeValue, c.UserSubscription,
+		c.ErrorPassthroughRule, c.Group, c.PromoCode, c.PromoCodeUsage, c.Proxy,
+		c.RedeemCode, c.Setting, c.UsageCleanupTask, c.UsageLog, c.User,
+		c.UserAllowedGroup, c.UserAttributeDefinition, c.UserAttributeValue,
+		c.UserSubscription,
 	} {
 		n.Use(hooks...)
 	}
@@ -297,9 +304,10 @@ func (c *Client) Use(hooks ...Hook) {
 func (c *Client) Intercept(interceptors ...Interceptor) {
 	for _, n := range []interface{ Intercept(...Interceptor) }{
 		c.APIKey, c.Account, c.AccountGroup, c.Announcement, c.AnnouncementRead,
-		c.Group, c.PromoCode, c.PromoCodeUsage, c.Proxy, c.RedeemCode, c.Setting,
-		c.UsageCleanupTask, c.UsageLog, c.User, c.UserAllowedGroup,
-		c.UserAttributeDefinition, c.UserAttributeValue, c.UserSubscription,
+		c.ErrorPassthroughRule, c.Group, c.PromoCode, c.PromoCodeUsage, c.Proxy,
+		c.RedeemCode, c.Setting, c.UsageCleanupTask, c.UsageLog, c.User,
+		c.UserAllowedGroup, c.UserAttributeDefinition, c.UserAttributeValue,
+		c.UserSubscription,
 	} {
 		n.Intercept(interceptors...)
 	}
@@ -318,6 +326,8 @@ func (c *Client) Mutate(ctx context.Context, m Mutation) (Value, error) {
 		return c.Announcement.mutate(ctx, m)
 	case *AnnouncementReadMutation:
 		return c.AnnouncementRead.mutate(ctx, m)
+	case *ErrorPassthroughRuleMutation:
+		return c.ErrorPassthroughRule.mutate(ctx, m)
 	case *GroupMutation:
 		return c.Group.mutate(ctx, m)
 	case *PromoCodeMutation:
@@ -1161,6 +1171,139 @@ func (c *AnnouncementReadClient) mutate(ctx context.Context, m *AnnouncementRead
 	}
 }
 
+// ErrorPassthroughRuleClient is a client for the ErrorPassthroughRule schema.
+type ErrorPassthroughRuleClient struct {
+	config
+}
+
+// NewErrorPassthroughRuleClient returns a client for the ErrorPassthroughRule from the given config.
+func NewErrorPassthroughRuleClient(c config) *ErrorPassthroughRuleClient {
+	return &ErrorPassthroughRuleClient{config: c}
+}
+
+// Use adds a list of mutation hooks to the hooks stack.
+// A call to `Use(f, g, h)` equals to `errorpassthroughrule.Hooks(f(g(h())))`.
+func (c *ErrorPassthroughRuleClient) Use(hooks ...Hook) {
+	c.hooks.ErrorPassthroughRule = append(c.hooks.ErrorPassthroughRule, hooks...)
+}
+
+// Intercept adds a list of query interceptors to the interceptors stack.
+// A call to `Intercept(f, g, h)` equals to `errorpassthroughrule.Intercept(f(g(h())))`.
+func (c *ErrorPassthroughRuleClient) Intercept(interceptors ...Interceptor) {
+	c.inters.ErrorPassthroughRule = append(c.inters.ErrorPassthroughRule, interceptors...)
+}
+
+// Create returns a builder for creating a ErrorPassthroughRule entity.
+func (c *ErrorPassthroughRuleClient) Create() *ErrorPassthroughRuleCreate {
+	mutation := newErrorPassthroughRuleMutation(c.config, OpCreate)
+	return &ErrorPassthroughRuleCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// CreateBulk returns a builder for creating a bulk of ErrorPassthroughRule entities.
+func (c *ErrorPassthroughRuleClient) CreateBulk(builders ...*ErrorPassthroughRuleCreate) *ErrorPassthroughRuleCreateBulk {
+	return &ErrorPassthroughRuleCreateBulk{config: c.config, builders: builders}
+}
+
+// MapCreateBulk creates a bulk creation builder from the given slice. For each item in the slice, the function creates
+// a builder and applies setFunc on it.
+func (c *ErrorPassthroughRuleClient) MapCreateBulk(slice any, setFunc func(*ErrorPassthroughRuleCreate, int)) *ErrorPassthroughRuleCreateBulk {
+	rv := reflect.ValueOf(slice)
+	if rv.Kind() != reflect.Slice {
+		return &ErrorPassthroughRuleCreateBulk{err: fmt.Errorf("calling to ErrorPassthroughRuleClient.MapCreateBulk with wrong type %T, need slice", slice)}
+	}
+	builders := make([]*ErrorPassthroughRuleCreate, rv.Len())
+	for i := 0; i < rv.Len(); i++ {
+		builders[i] = c.Create()
+		setFunc(builders[i], i)
+	}
+	return &ErrorPassthroughRuleCreateBulk{config: c.config, builders: builders}
+}
+
+// Update returns an update builder for ErrorPassthroughRule.
+func (c *ErrorPassthroughRuleClient) Update() *ErrorPassthroughRuleUpdate {
+	mutation := newErrorPassthroughRuleMutation(c.config, OpUpdate)
+	return &ErrorPassthroughRuleUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOne returns an update builder for the given entity.
+func (c *ErrorPassthroughRuleClient) UpdateOne(_m *ErrorPassthroughRule) *ErrorPassthroughRuleUpdateOne {
+	mutation := newErrorPassthroughRuleMutation(c.config, OpUpdateOne, withErrorPassthroughRule(_m))
+	return &ErrorPassthroughRuleUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOneID returns an update builder for the given id.
+func (c *ErrorPassthroughRuleClient) UpdateOneID(id int64) *ErrorPassthroughRuleUpdateOne {
+	mutation := newErrorPassthroughRuleMutation(c.config, OpUpdateOne, withErrorPassthroughRuleID(id))
+	return &ErrorPassthroughRuleUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// Delete returns a delete builder for ErrorPassthroughRule.
+func (c *ErrorPassthroughRuleClient) Delete() *ErrorPassthroughRuleDelete {
+	mutation := newErrorPassthroughRuleMutation(c.config, OpDelete)
+	return &ErrorPassthroughRuleDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// DeleteOne returns a builder for deleting the given entity.
+func (c *ErrorPassthroughRuleClient) DeleteOne(_m *ErrorPassthroughRule) *ErrorPassthroughRuleDeleteOne {
+	return c.DeleteOneID(_m.ID)
+}
+
+// DeleteOneID returns a builder for deleting the given entity by its id.
+func (c *ErrorPassthroughRuleClient) DeleteOneID(id int64) *ErrorPassthroughRuleDeleteOne {
+	builder := c.Delete().Where(errorpassthroughrule.ID(id))
+	builder.mutation.id = &id
+	builder.mutation.op = OpDeleteOne
+	return &ErrorPassthroughRuleDeleteOne{builder}
+}
+
+// Query returns a query builder for ErrorPassthroughRule.
+func (c *ErrorPassthroughRuleClient) Query() *ErrorPassthroughRuleQuery {
+	return &ErrorPassthroughRuleQuery{
+		config: c.config,
+		ctx:    &QueryContext{Type: TypeErrorPassthroughRule},
+		inters: c.Interceptors(),
+	}
+}
+
+// Get returns a ErrorPassthroughRule entity by its id.
+func (c *ErrorPassthroughRuleClient) Get(ctx context.Context, id int64) (*ErrorPassthroughRule, error) {
+	return c.Query().Where(errorpassthroughrule.ID(id)).Only(ctx)
+}
+
+// GetX is like Get, but panics if an error occurs.
+func (c *ErrorPassthroughRuleClient) GetX(ctx context.Context, id int64) *ErrorPassthroughRule {
+	obj, err := c.Get(ctx, id)
+	if err != nil {
+		panic(err)
+	}
+	return obj
+}
+
+// Hooks returns the client hooks.
+func (c *ErrorPassthroughRuleClient) Hooks() []Hook {
+	return c.hooks.ErrorPassthroughRule
+}
+
+// Interceptors returns the client interceptors.
+func (c *ErrorPassthroughRuleClient) Interceptors() []Interceptor {
+	return c.inters.ErrorPassthroughRule
+}
+
+func (c *ErrorPassthroughRuleClient) mutate(ctx context.Context, m *ErrorPassthroughRuleMutation) (Value, error) {
+	switch m.Op() {
+	case OpCreate:
+		return (&ErrorPassthroughRuleCreate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpUpdate:
+		return (&ErrorPassthroughRuleUpdate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpUpdateOne:
+		return (&ErrorPassthroughRuleUpdateOne{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpDelete, OpDeleteOne:
+		return (&ErrorPassthroughRuleDelete{config: c.config, hooks: c.Hooks(), mutation: m}).Exec(ctx)
+	default:
+		return nil, fmt.Errorf("ent: unknown ErrorPassthroughRule mutation op: %q", m.Op())
+	}
+}
+
 // GroupClient is a client for the Group schema.
 type GroupClient struct {
 	config
@@ -3462,16 +3605,16 @@ func (c *UserSubscriptionClient) mutate(ctx context.Context, m *UserSubscription
 // hooks and interceptors per client, for fast access.
 type (
 	hooks struct {
-		APIKey, Account, AccountGroup, Announcement, AnnouncementRead, Group, PromoCode,
-		PromoCodeUsage, Proxy, RedeemCode, Setting, UsageCleanupTask, UsageLog, User,
-		UserAllowedGroup, UserAttributeDefinition, UserAttributeValue,
-		UserSubscription []ent.Hook
+		APIKey, Account, AccountGroup, Announcement, AnnouncementRead,
+		ErrorPassthroughRule, Group, PromoCode, PromoCodeUsage, Proxy, RedeemCode,
+		Setting, UsageCleanupTask, UsageLog, User, UserAllowedGroup,
+		UserAttributeDefinition, UserAttributeValue, UserSubscription []ent.Hook
 	}
 	inters struct {
-		APIKey, Account, AccountGroup, Announcement, AnnouncementRead, Group, PromoCode,
-		PromoCodeUsage, Proxy, RedeemCode, Setting, UsageCleanupTask, UsageLog, User,
-		UserAllowedGroup, UserAttributeDefinition, UserAttributeValue,
-		UserSubscription []ent.Interceptor
+		APIKey, Account, AccountGroup, Announcement, AnnouncementRead,
+		ErrorPassthroughRule, Group, PromoCode, PromoCodeUsage, Proxy, RedeemCode,
+		Setting, UsageCleanupTask, UsageLog, User, UserAllowedGroup,
+		UserAttributeDefinition, UserAttributeValue, UserSubscription []ent.Interceptor
 	}
 )
 

backend/ent/ent.go

@@ -17,6 +17,7 @@ import (
 	"github.com/Wei-Shaw/sub2api/ent/announcement"
 	"github.com/Wei-Shaw/sub2api/ent/announcementread"
 	"github.com/Wei-Shaw/sub2api/ent/apikey"
+	"github.com/Wei-Shaw/sub2api/ent/errorpassthroughrule"
 	"github.com/Wei-Shaw/sub2api/ent/group"
 	"github.com/Wei-Shaw/sub2api/ent/promocode"
 	"github.com/Wei-Shaw/sub2api/ent/promocodeusage"
@@ -95,6 +96,7 @@ func checkColumn(t, c string) error {
 			accountgroup.Table:            accountgroup.ValidColumn,
 			announcement.Table:            announcement.ValidColumn,
 			announcementread.Table:        announcementread.ValidColumn,
+			errorpassthroughrule.Table:    errorpassthroughrule.ValidColumn,
 			group.Table:                   group.ValidColumn,
 			promocode.Table:               promocode.ValidColumn,
 			promocodeusage.Table:          promocodeusage.ValidColumn,

backend/ent/errorpassthroughrule.go

@@ -0,0 +1,269 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"github.com/Wei-Shaw/sub2api/ent/errorpassthroughrule"
+)
+
+// ErrorPassthroughRule is the model entity for the ErrorPassthroughRule schema.
+type ErrorPassthroughRule struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int64 `json:"id,omitempty"`
+	// CreatedAt holds the value of the "created_at" field.
+	CreatedAt time.Time `json:"created_at,omitempty"`
+	// UpdatedAt holds the value of the "updated_at" field.
+	UpdatedAt time.Time `json:"updated_at,omitempty"`
+	// Name holds the value of the "name" field.
+	Name string `json:"name,omitempty"`
+	// Enabled holds the value of the "enabled" field.
+	Enabled bool `json:"enabled,omitempty"`
+	// Priority holds the value of the "priority" field.
+	Priority int `json:"priority,omitempty"`
+	// ErrorCodes holds the value of the "error_codes" field.
+	ErrorCodes []int `json:"error_codes,omitempty"`
+	// Keywords holds the value of the "keywords" field.
+	Keywords []string `json:"keywords,omitempty"`
+	// MatchMode holds the value of the "match_mode" field.
+	MatchMode string `json:"match_mode,omitempty"`
+	// Platforms holds the value of the "platforms" field.
+	Platforms []string `json:"platforms,omitempty"`
+	// PassthroughCode holds the value of the "passthrough_code" field.
+	PassthroughCode bool `json:"passthrough_code,omitempty"`
+	// ResponseCode holds the value of the "response_code" field.
+	ResponseCode *int `json:"response_code,omitempty"`
+	// PassthroughBody holds the value of the "passthrough_body" field.
+	PassthroughBody bool `json:"passthrough_body,omitempty"`
+	// CustomMessage holds the value of the "custom_message" field.
+	CustomMessage *string `json:"custom_message,omitempty"`
+	// Description holds the value of the "description" field.
+	Description  *string `json:"description,omitempty"`
+	selectValues sql.SelectValues
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*ErrorPassthroughRule) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case errorpassthroughrule.FieldErrorCodes, errorpassthroughrule.FieldKeywords, errorpassthroughrule.FieldPlatforms:
+			values[i] = new([]byte)
+		case errorpassthroughrule.FieldEnabled, errorpassthroughrule.FieldPassthroughCode, errorpassthroughrule.FieldPassthroughBody:
+			values[i] = new(sql.NullBool)
+		case errorpassthroughrule.FieldID, errorpassthroughrule.FieldPriority, errorpassthroughrule.FieldResponseCode:
+			values[i] = new(sql.NullInt64)
+		case errorpassthroughrule.FieldName, errorpassthroughrule.FieldMatchMode, errorpassthroughrule.FieldCustomMessage, errorpassthroughrule.FieldDescription:
+			values[i] = new(sql.NullString)
+		case errorpassthroughrule.FieldCreatedAt, errorpassthroughrule.FieldUpdatedAt:
+			values[i] = new(sql.NullTime)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the ErrorPassthroughRule fields.
+func (_m *ErrorPassthroughRule) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case errorpassthroughrule.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int64(value.Int64)
+		case errorpassthroughrule.FieldCreatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field created_at", values[i])
+			} else if value.Valid {
+				_m.CreatedAt = value.Time
+			}
+		case errorpassthroughrule.FieldUpdatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field updated_at", values[i])
+			} else if value.Valid {
+				_m.UpdatedAt = value.Time
+			}
+		case errorpassthroughrule.FieldName:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field name", values[i])
+			} else if value.Valid {
+				_m.Name = value.String
+			}
+		case errorpassthroughrule.FieldEnabled:
+			if value, ok := values[i].(*sql.NullBool); !ok {
+				return fmt.Errorf("unexpected type %T for field enabled", values[i])
+			} else if value.Valid {
+				_m.Enabled = value.Bool
+			}
+		case errorpassthroughrule.FieldPriority:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field priority", values[i])
+			} else if value.Valid {
+				_m.Priority = int(value.Int64)
+			}
+		case errorpassthroughrule.FieldErrorCodes:
+			if value, ok := values[i].(*[]byte); !ok {
+				return fmt.Errorf("unexpected type %T for field error_codes", values[i])
+			} else if value != nil && len(*value) > 0 {
+				if err := json.Unmarshal(*value, &_m.ErrorCodes); err != nil {
+					return fmt.Errorf("unmarshal field error_codes: %w", err)
+				}
+			}
+		case errorpassthroughrule.FieldKeywords:
+			if value, ok := values[i].(*[]byte); !ok {
+				return fmt.Errorf("unexpected type %T for field keywords", values[i])
+			} else if value != nil && len(*value) > 0 {
+				if err := json.Unmarshal(*value, &_m.Keywords); err != nil {
+					return fmt.Errorf("unmarshal field keywords: %w", err)
+				}
+			}
+		case errorpassthroughrule.FieldMatchMode:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field match_mode", values[i])
+			} else if value.Valid {
+				_m.MatchMode = value.String
+			}
+		case errorpassthroughrule.FieldPlatforms:
+			if value, ok := values[i].(*[]byte); !ok {
+				return fmt.Errorf("unexpected type %T for field platforms", values[i])
+			} else if value != nil && len(*value) > 0 {
+				if err := json.Unmarshal(*value, &_m.Platforms); err != nil {
+					return fmt.Errorf("unmarshal field platforms: %w", err)
+				}
+			}
+		case errorpassthroughrule.FieldPassthroughCode:
+			if value, ok := values[i].(*sql.NullBool); !ok {
+				return fmt.Errorf("unexpected type %T for field passthrough_code", values[i])
+			} else if value.Valid {
+				_m.PassthroughCode = value.Bool
+			}
+		case errorpassthroughrule.FieldResponseCode:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field response_code", values[i])
+			} else if value.Valid {
+				_m.ResponseCode = new(int)
+				*_m.ResponseCode = int(value.Int64)
+			}
+		case errorpassthroughrule.FieldPassthroughBody:
+			if value, ok := values[i].(*sql.NullBool); !ok {
+				return fmt.Errorf("unexpected type %T for field passthrough_body", values[i])
+			} else if value.Valid {
+				_m.PassthroughBody = value.Bool
+			}
+		case errorpassthroughrule.FieldCustomMessage:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field custom_message", values[i])
+			} else if value.Valid {
+				_m.CustomMessage = new(string)
+				*_m.CustomMessage = value.String
+			}
+		case errorpassthroughrule.FieldDescription:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field description", values[i])
+			} else if value.Valid {
+				_m.Description = new(string)
+				*_m.Description = value.String
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the ErrorPassthroughRule.
+// This includes values selected through modifiers, order, etc.
+func (_m *ErrorPassthroughRule) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// Update returns a builder for updating this ErrorPassthroughRule.
+// Note that you need to call ErrorPassthroughRule.Unwrap() before calling this method if this ErrorPassthroughRule
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *ErrorPassthroughRule) Update() *ErrorPassthroughRuleUpdateOne {
+	return NewErrorPassthroughRuleClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the ErrorPassthroughRule entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *ErrorPassthroughRule) Unwrap() *ErrorPassthroughRule {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: ErrorPassthroughRule is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *ErrorPassthroughRule) String() string {
+	var builder strings.Builder
+	builder.WriteString("ErrorPassthroughRule(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("created_at=")
+	builder.WriteString(_m.CreatedAt.Format(time.ANSIC))
+	builder.WriteString(", ")
+	builder.WriteString("updated_at=")
+	builder.WriteString(_m.UpdatedAt.Format(time.ANSIC))
+	builder.WriteString(", ")
+	builder.WriteString("name=")
+	builder.WriteString(_m.Name)
+	builder.WriteString(", ")
+	builder.WriteString("enabled=")
+	builder.WriteString(fmt.Sprintf("%v", _m.Enabled))
+	builder.WriteString(", ")
+	builder.WriteString("priority=")
+	builder.WriteString(fmt.Sprintf("%v", _m.Priority))
+	builder.WriteString(", ")
+	builder.WriteString("error_codes=")
+	builder.WriteString(fmt.Sprintf("%v", _m.ErrorCodes))
+	builder.WriteString(", ")
+	builder.WriteString("keywords=")
+	builder.WriteString(fmt.Sprintf("%v", _m.Keywords))
+	builder.WriteString(", ")
+	builder.WriteString("match_mode=")
+	builder.WriteString(_m.MatchMode)
+	builder.WriteString(", ")
+	builder.WriteString("platforms=")
+	builder.WriteString(fmt.Sprintf("%v", _m.Platforms))
+	builder.WriteString(", ")
+	builder.WriteString("passthrough_code=")
+	builder.WriteString(fmt.Sprintf("%v", _m.PassthroughCode))
+	builder.WriteString(", ")
+	if v := _m.ResponseCode; v != nil {
+		builder.WriteString("response_code=")
+		builder.WriteString(fmt.Sprintf("%v", *v))
+	}
+	builder.WriteString(", ")
+	builder.WriteString("passthrough_body=")
+	builder.WriteString(fmt.Sprintf("%v", _m.PassthroughBody))
+	builder.WriteString(", ")
+	if v := _m.CustomMessage; v != nil {
+		builder.WriteString("custom_message=")
+		builder.WriteString(*v)
+	}
+	builder.WriteString(", ")
+	if v := _m.Description; v != nil {
+		builder.WriteString("description=")
+		builder.WriteString(*v)
+	}
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// ErrorPassthroughRules is a parsable slice of ErrorPassthroughRule.
+type ErrorPassthroughRules []*ErrorPassthroughRule

backend/ent/errorpassthroughrule/errorpassthroughrule.go

@@ -0,0 +1,161 @@
+// Code generated by ent, DO NOT EDIT.
+
+package errorpassthroughrule
+
+import (
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+)
+
+const (
+	// Label holds the string label denoting the errorpassthroughrule type in the database.
+	Label = "error_passthrough_rule"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldCreatedAt holds the string denoting the created_at field in the database.
+	FieldCreatedAt = "created_at"
+	// FieldUpdatedAt holds the string denoting the updated_at field in the database.
+	FieldUpdatedAt = "updated_at"
+	// FieldName holds the string denoting the name field in the database.
+	FieldName = "name"
+	// FieldEnabled holds the string denoting the enabled field in the database.
+	FieldEnabled = "enabled"
+	// FieldPriority holds the string denoting the priority field in the database.
+	FieldPriority = "priority"
+	// FieldErrorCodes holds the string denoting the error_codes field in the database.
+	FieldErrorCodes = "error_codes"
+	// FieldKeywords holds the string denoting the keywords field in the database.
+	FieldKeywords = "keywords"
+	// FieldMatchMode holds the string denoting the match_mode field in the database.
+	FieldMatchMode = "match_mode"
+	// FieldPlatforms holds the string denoting the platforms field in the database.
+	FieldPlatforms = "platforms"
+	// FieldPassthroughCode holds the string denoting the passthrough_code field in the database.
+	FieldPassthroughCode = "passthrough_code"
+	// FieldResponseCode holds the string denoting the response_code field in the database.
+	FieldResponseCode = "response_code"
+	// FieldPassthroughBody holds the string denoting the passthrough_body field in the database.
+	FieldPassthroughBody = "passthrough_body"
+	// FieldCustomMessage holds the string denoting the custom_message field in the database.
+	FieldCustomMessage = "custom_message"
+	// FieldDescription holds the string denoting the description field in the database.
+	FieldDescription = "description"
+	// Table holds the table name of the errorpassthroughrule in the database.
+	Table = "error_passthrough_rules"
+)
+
+// Columns holds all SQL columns for errorpassthroughrule fields.
+var Columns = []string{
+	FieldID,
+	FieldCreatedAt,
+	FieldUpdatedAt,
+	FieldName,
+	FieldEnabled,
+	FieldPriority,
+	FieldErrorCodes,
+	FieldKeywords,
+	FieldMatchMode,
+	FieldPlatforms,
+	FieldPassthroughCode,
+	FieldResponseCode,
+	FieldPassthroughBody,
+	FieldCustomMessage,
+	FieldDescription,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// DefaultCreatedAt holds the default value on creation for the "created_at" field.
+	DefaultCreatedAt func() time.Time
+	// DefaultUpdatedAt holds the default value on creation for the "updated_at" field.
+	DefaultUpdatedAt func() time.Time
+	// UpdateDefaultUpdatedAt holds the default value on update for the "updated_at" field.
+	UpdateDefaultUpdatedAt func() time.Time
+	// NameValidator is a validator for the "name" field. It is called by the builders before save.
+	NameValidator func(string) error
+	// DefaultEnabled holds the default value on creation for the "enabled" field.
+	DefaultEnabled bool
+	// DefaultPriority holds the default value on creation for the "priority" field.
+	DefaultPriority int
+	// DefaultMatchMode holds the default value on creation for the "match_mode" field.
+	DefaultMatchMode string
+	// MatchModeValidator is a validator for the "match_mode" field. It is called by the builders before save.
+	MatchModeValidator func(string) error
+	// DefaultPassthroughCode holds the default value on creation for the "passthrough_code" field.
+	DefaultPassthroughCode bool
+	// DefaultPassthroughBody holds the default value on creation for the "passthrough_body" field.
+	DefaultPassthroughBody bool
+)
+
+// OrderOption defines the ordering options for the ErrorPassthroughRule queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByCreatedAt orders the results by the created_at field.
+func ByCreatedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldCreatedAt, opts...).ToFunc()
+}
+
+// ByUpdatedAt orders the results by the updated_at field.
+func ByUpdatedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldUpdatedAt, opts...).ToFunc()
+}
+
+// ByName orders the results by the name field.
+func ByName(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldName, opts...).ToFunc()
+}
+
+// ByEnabled orders the results by the enabled field.
+func ByEnabled(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldEnabled, opts...).ToFunc()
+}
+
+// ByPriority orders the results by the priority field.
+func ByPriority(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldPriority, opts...).ToFunc()
+}
+
+// ByMatchMode orders the results by the match_mode field.
+func ByMatchMode(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldMatchMode, opts...).ToFunc()
+}
+
+// ByPassthroughCode orders the results by the passthrough_code field.
+func ByPassthroughCode(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldPassthroughCode, opts...).ToFunc()
+}
+
+// ByResponseCode orders the results by the response_code field.
+func ByResponseCode(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldResponseCode, opts...).ToFunc()
+}
+
+// ByPassthroughBody orders the results by the passthrough_body field.
+func ByPassthroughBody(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldPassthroughBody, opts...).ToFunc()
+}
+
+// ByCustomMessage orders the results by the custom_message field.
+func ByCustomMessage(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldCustomMessage, opts...).ToFunc()
+}
+
+// ByDescription orders the results by the description field.
+func ByDescription(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldDescription, opts...).ToFunc()
+}

backend/ent/errorpassthroughrule/where.go

@@ -0,0 +1,635 @@
+// Code generated by ent, DO NOT EDIT.
+
+package errorpassthroughrule
+
+import (
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int64) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int64) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int64) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int64) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int64) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int64) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int64) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int64) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int64) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLTE(FieldID, id))
+}
+
+// CreatedAt applies equality check predicate on the "created_at" field. It's identical to CreatedAtEQ.
+func CreatedAt(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldCreatedAt, v))
+}
+
+// UpdatedAt applies equality check predicate on the "updated_at" field. It's identical to UpdatedAtEQ.
+func UpdatedAt(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldUpdatedAt, v))
+}
+
+// Name applies equality check predicate on the "name" field. It's identical to NameEQ.
+func Name(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldName, v))
+}
+
+// Enabled applies equality check predicate on the "enabled" field. It's identical to EnabledEQ.
+func Enabled(v bool) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldEnabled, v))
+}
+
+// Priority applies equality check predicate on the "priority" field. It's identical to PriorityEQ.
+func Priority(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldPriority, v))
+}
+
+// MatchMode applies equality check predicate on the "match_mode" field. It's identical to MatchModeEQ.
+func MatchMode(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldMatchMode, v))
+}
+
+// PassthroughCode applies equality check predicate on the "passthrough_code" field. It's identical to PassthroughCodeEQ.
+func PassthroughCode(v bool) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldPassthroughCode, v))
+}
+
+// ResponseCode applies equality check predicate on the "response_code" field. It's identical to ResponseCodeEQ.
+func ResponseCode(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldResponseCode, v))
+}
+
+// PassthroughBody applies equality check predicate on the "passthrough_body" field. It's identical to PassthroughBodyEQ.
+func PassthroughBody(v bool) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldPassthroughBody, v))
+}
+
+// CustomMessage applies equality check predicate on the "custom_message" field. It's identical to CustomMessageEQ.
+func CustomMessage(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldCustomMessage, v))
+}
+
+// Description applies equality check predicate on the "description" field. It's identical to DescriptionEQ.
+func Description(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldDescription, v))
+}
+
+// CreatedAtEQ applies the EQ predicate on the "created_at" field.
+func CreatedAtEQ(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldCreatedAt, v))
+}
+
+// CreatedAtNEQ applies the NEQ predicate on the "created_at" field.
+func CreatedAtNEQ(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldCreatedAt, v))
+}
+
+// CreatedAtIn applies the In predicate on the "created_at" field.
+func CreatedAtIn(vs ...time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIn(FieldCreatedAt, vs...))
+}
+
+// CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
+func CreatedAtNotIn(vs ...time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotIn(FieldCreatedAt, vs...))
+}
+
+// CreatedAtGT applies the GT predicate on the "created_at" field.
+func CreatedAtGT(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGT(FieldCreatedAt, v))
+}
+
+// CreatedAtGTE applies the GTE predicate on the "created_at" field.
+func CreatedAtGTE(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGTE(FieldCreatedAt, v))
+}
+
+// CreatedAtLT applies the LT predicate on the "created_at" field.
+func CreatedAtLT(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLT(FieldCreatedAt, v))
+}
+
+// CreatedAtLTE applies the LTE predicate on the "created_at" field.
+func CreatedAtLTE(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLTE(FieldCreatedAt, v))
+}
+
+// UpdatedAtEQ applies the EQ predicate on the "updated_at" field.
+func UpdatedAtEQ(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldUpdatedAt, v))
+}
+
+// UpdatedAtNEQ applies the NEQ predicate on the "updated_at" field.
+func UpdatedAtNEQ(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldUpdatedAt, v))
+}
+
+// UpdatedAtIn applies the In predicate on the "updated_at" field.
+func UpdatedAtIn(vs ...time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIn(FieldUpdatedAt, vs...))
+}
+
+// UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
+func UpdatedAtNotIn(vs ...time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotIn(FieldUpdatedAt, vs...))
+}
+
+// UpdatedAtGT applies the GT predicate on the "updated_at" field.
+func UpdatedAtGT(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGT(FieldUpdatedAt, v))
+}
+
+// UpdatedAtGTE applies the GTE predicate on the "updated_at" field.
+func UpdatedAtGTE(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGTE(FieldUpdatedAt, v))
+}
+
+// UpdatedAtLT applies the LT predicate on the "updated_at" field.
+func UpdatedAtLT(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLT(FieldUpdatedAt, v))
+}
+
+// UpdatedAtLTE applies the LTE predicate on the "updated_at" field.
+func UpdatedAtLTE(v time.Time) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLTE(FieldUpdatedAt, v))
+}
+
+// NameEQ applies the EQ predicate on the "name" field.
+func NameEQ(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldName, v))
+}
+
+// NameNEQ applies the NEQ predicate on the "name" field.
+func NameNEQ(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldName, v))
+}
+
+// NameIn applies the In predicate on the "name" field.
+func NameIn(vs ...string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIn(FieldName, vs...))
+}
+
+// NameNotIn applies the NotIn predicate on the "name" field.
+func NameNotIn(vs ...string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotIn(FieldName, vs...))
+}
+
+// NameGT applies the GT predicate on the "name" field.
+func NameGT(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGT(FieldName, v))
+}
+
+// NameGTE applies the GTE predicate on the "name" field.
+func NameGTE(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGTE(FieldName, v))
+}
+
+// NameLT applies the LT predicate on the "name" field.
+func NameLT(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLT(FieldName, v))
+}
+
+// NameLTE applies the LTE predicate on the "name" field.
+func NameLTE(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLTE(FieldName, v))
+}
+
+// NameContains applies the Contains predicate on the "name" field.
+func NameContains(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldContains(FieldName, v))
+}
+
+// NameHasPrefix applies the HasPrefix predicate on the "name" field.
+func NameHasPrefix(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldHasPrefix(FieldName, v))
+}
+
+// NameHasSuffix applies the HasSuffix predicate on the "name" field.
+func NameHasSuffix(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldHasSuffix(FieldName, v))
+}
+
+// NameEqualFold applies the EqualFold predicate on the "name" field.
+func NameEqualFold(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEqualFold(FieldName, v))
+}
+
+// NameContainsFold applies the ContainsFold predicate on the "name" field.
+func NameContainsFold(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldContainsFold(FieldName, v))
+}
+
+// EnabledEQ applies the EQ predicate on the "enabled" field.
+func EnabledEQ(v bool) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldEnabled, v))
+}
+
+// EnabledNEQ applies the NEQ predicate on the "enabled" field.
+func EnabledNEQ(v bool) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldEnabled, v))
+}
+
+// PriorityEQ applies the EQ predicate on the "priority" field.
+func PriorityEQ(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldPriority, v))
+}
+
+// PriorityNEQ applies the NEQ predicate on the "priority" field.
+func PriorityNEQ(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldPriority, v))
+}
+
+// PriorityIn applies the In predicate on the "priority" field.
+func PriorityIn(vs ...int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIn(FieldPriority, vs...))
+}
+
+// PriorityNotIn applies the NotIn predicate on the "priority" field.
+func PriorityNotIn(vs ...int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotIn(FieldPriority, vs...))
+}
+
+// PriorityGT applies the GT predicate on the "priority" field.
+func PriorityGT(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGT(FieldPriority, v))
+}
+
+// PriorityGTE applies the GTE predicate on the "priority" field.
+func PriorityGTE(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGTE(FieldPriority, v))
+}
+
+// PriorityLT applies the LT predicate on the "priority" field.
+func PriorityLT(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLT(FieldPriority, v))
+}
+
+// PriorityLTE applies the LTE predicate on the "priority" field.
+func PriorityLTE(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLTE(FieldPriority, v))
+}
+
+// ErrorCodesIsNil applies the IsNil predicate on the "error_codes" field.
+func ErrorCodesIsNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIsNull(FieldErrorCodes))
+}
+
+// ErrorCodesNotNil applies the NotNil predicate on the "error_codes" field.
+func ErrorCodesNotNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotNull(FieldErrorCodes))
+}
+
+// KeywordsIsNil applies the IsNil predicate on the "keywords" field.
+func KeywordsIsNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIsNull(FieldKeywords))
+}
+
+// KeywordsNotNil applies the NotNil predicate on the "keywords" field.
+func KeywordsNotNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotNull(FieldKeywords))
+}
+
+// MatchModeEQ applies the EQ predicate on the "match_mode" field.
+func MatchModeEQ(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldMatchMode, v))
+}
+
+// MatchModeNEQ applies the NEQ predicate on the "match_mode" field.
+func MatchModeNEQ(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldMatchMode, v))
+}
+
+// MatchModeIn applies the In predicate on the "match_mode" field.
+func MatchModeIn(vs ...string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIn(FieldMatchMode, vs...))
+}
+
+// MatchModeNotIn applies the NotIn predicate on the "match_mode" field.
+func MatchModeNotIn(vs ...string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotIn(FieldMatchMode, vs...))
+}
+
+// MatchModeGT applies the GT predicate on the "match_mode" field.
+func MatchModeGT(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGT(FieldMatchMode, v))
+}
+
+// MatchModeGTE applies the GTE predicate on the "match_mode" field.
+func MatchModeGTE(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGTE(FieldMatchMode, v))
+}
+
+// MatchModeLT applies the LT predicate on the "match_mode" field.
+func MatchModeLT(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLT(FieldMatchMode, v))
+}
+
+// MatchModeLTE applies the LTE predicate on the "match_mode" field.
+func MatchModeLTE(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLTE(FieldMatchMode, v))
+}
+
+// MatchModeContains applies the Contains predicate on the "match_mode" field.
+func MatchModeContains(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldContains(FieldMatchMode, v))
+}
+
+// MatchModeHasPrefix applies the HasPrefix predicate on the "match_mode" field.
+func MatchModeHasPrefix(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldHasPrefix(FieldMatchMode, v))
+}
+
+// MatchModeHasSuffix applies the HasSuffix predicate on the "match_mode" field.
+func MatchModeHasSuffix(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldHasSuffix(FieldMatchMode, v))
+}
+
+// MatchModeEqualFold applies the EqualFold predicate on the "match_mode" field.
+func MatchModeEqualFold(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEqualFold(FieldMatchMode, v))
+}
+
+// MatchModeContainsFold applies the ContainsFold predicate on the "match_mode" field.
+func MatchModeContainsFold(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldContainsFold(FieldMatchMode, v))
+}
+
+// PlatformsIsNil applies the IsNil predicate on the "platforms" field.
+func PlatformsIsNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIsNull(FieldPlatforms))
+}
+
+// PlatformsNotNil applies the NotNil predicate on the "platforms" field.
+func PlatformsNotNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotNull(FieldPlatforms))
+}
+
+// PassthroughCodeEQ applies the EQ predicate on the "passthrough_code" field.
+func PassthroughCodeEQ(v bool) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldPassthroughCode, v))
+}
+
+// PassthroughCodeNEQ applies the NEQ predicate on the "passthrough_code" field.
+func PassthroughCodeNEQ(v bool) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldPassthroughCode, v))
+}
+
+// ResponseCodeEQ applies the EQ predicate on the "response_code" field.
+func ResponseCodeEQ(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldResponseCode, v))
+}
+
+// ResponseCodeNEQ applies the NEQ predicate on the "response_code" field.
+func ResponseCodeNEQ(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldResponseCode, v))
+}
+
+// ResponseCodeIn applies the In predicate on the "response_code" field.
+func ResponseCodeIn(vs ...int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIn(FieldResponseCode, vs...))
+}
+
+// ResponseCodeNotIn applies the NotIn predicate on the "response_code" field.
+func ResponseCodeNotIn(vs ...int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotIn(FieldResponseCode, vs...))
+}
+
+// ResponseCodeGT applies the GT predicate on the "response_code" field.
+func ResponseCodeGT(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGT(FieldResponseCode, v))
+}
+
+// ResponseCodeGTE applies the GTE predicate on the "response_code" field.
+func ResponseCodeGTE(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGTE(FieldResponseCode, v))
+}
+
+// ResponseCodeLT applies the LT predicate on the "response_code" field.
+func ResponseCodeLT(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLT(FieldResponseCode, v))
+}
+
+// ResponseCodeLTE applies the LTE predicate on the "response_code" field.
+func ResponseCodeLTE(v int) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLTE(FieldResponseCode, v))
+}
+
+// ResponseCodeIsNil applies the IsNil predicate on the "response_code" field.
+func ResponseCodeIsNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIsNull(FieldResponseCode))
+}
+
+// ResponseCodeNotNil applies the NotNil predicate on the "response_code" field.
+func ResponseCodeNotNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotNull(FieldResponseCode))
+}
+
+// PassthroughBodyEQ applies the EQ predicate on the "passthrough_body" field.
+func PassthroughBodyEQ(v bool) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldPassthroughBody, v))
+}
+
+// PassthroughBodyNEQ applies the NEQ predicate on the "passthrough_body" field.
+func PassthroughBodyNEQ(v bool) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldPassthroughBody, v))
+}
+
+// CustomMessageEQ applies the EQ predicate on the "custom_message" field.
+func CustomMessageEQ(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldCustomMessage, v))
+}
+
+// CustomMessageNEQ applies the NEQ predicate on the "custom_message" field.
+func CustomMessageNEQ(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldCustomMessage, v))
+}
+
+// CustomMessageIn applies the In predicate on the "custom_message" field.
+func CustomMessageIn(vs ...string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIn(FieldCustomMessage, vs...))
+}
+
+// CustomMessageNotIn applies the NotIn predicate on the "custom_message" field.
+func CustomMessageNotIn(vs ...string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotIn(FieldCustomMessage, vs...))
+}
+
+// CustomMessageGT applies the GT predicate on the "custom_message" field.
+func CustomMessageGT(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGT(FieldCustomMessage, v))
+}
+
+// CustomMessageGTE applies the GTE predicate on the "custom_message" field.
+func CustomMessageGTE(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGTE(FieldCustomMessage, v))
+}
+
+// CustomMessageLT applies the LT predicate on the "custom_message" field.
+func CustomMessageLT(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLT(FieldCustomMessage, v))
+}
+
+// CustomMessageLTE applies the LTE predicate on the "custom_message" field.
+func CustomMessageLTE(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLTE(FieldCustomMessage, v))
+}
+
+// CustomMessageContains applies the Contains predicate on the "custom_message" field.
+func CustomMessageContains(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldContains(FieldCustomMessage, v))
+}
+
+// CustomMessageHasPrefix applies the HasPrefix predicate on the "custom_message" field.
+func CustomMessageHasPrefix(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldHasPrefix(FieldCustomMessage, v))
+}
+
+// CustomMessageHasSuffix applies the HasSuffix predicate on the "custom_message" field.
+func CustomMessageHasSuffix(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldHasSuffix(FieldCustomMessage, v))
+}
+
+// CustomMessageIsNil applies the IsNil predicate on the "custom_message" field.
+func CustomMessageIsNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIsNull(FieldCustomMessage))
+}
+
+// CustomMessageNotNil applies the NotNil predicate on the "custom_message" field.
+func CustomMessageNotNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotNull(FieldCustomMessage))
+}
+
+// CustomMessageEqualFold applies the EqualFold predicate on the "custom_message" field.
+func CustomMessageEqualFold(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEqualFold(FieldCustomMessage, v))
+}
+
+// CustomMessageContainsFold applies the ContainsFold predicate on the "custom_message" field.
+func CustomMessageContainsFold(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldContainsFold(FieldCustomMessage, v))
+}
+
+// DescriptionEQ applies the EQ predicate on the "description" field.
+func DescriptionEQ(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEQ(FieldDescription, v))
+}
+
+// DescriptionNEQ applies the NEQ predicate on the "description" field.
+func DescriptionNEQ(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNEQ(FieldDescription, v))
+}
+
+// DescriptionIn applies the In predicate on the "description" field.
+func DescriptionIn(vs ...string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIn(FieldDescription, vs...))
+}
+
+// DescriptionNotIn applies the NotIn predicate on the "description" field.
+func DescriptionNotIn(vs ...string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotIn(FieldDescription, vs...))
+}
+
+// DescriptionGT applies the GT predicate on the "description" field.
+func DescriptionGT(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGT(FieldDescription, v))
+}
+
+// DescriptionGTE applies the GTE predicate on the "description" field.
+func DescriptionGTE(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldGTE(FieldDescription, v))
+}
+
+// DescriptionLT applies the LT predicate on the "description" field.
+func DescriptionLT(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLT(FieldDescription, v))
+}
+
+// DescriptionLTE applies the LTE predicate on the "description" field.
+func DescriptionLTE(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldLTE(FieldDescription, v))
+}
+
+// DescriptionContains applies the Contains predicate on the "description" field.
+func DescriptionContains(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldContains(FieldDescription, v))
+}
+
+// DescriptionHasPrefix applies the HasPrefix predicate on the "description" field.
+func DescriptionHasPrefix(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldHasPrefix(FieldDescription, v))
+}
+
+// DescriptionHasSuffix applies the HasSuffix predicate on the "description" field.
+func DescriptionHasSuffix(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldHasSuffix(FieldDescription, v))
+}
+
+// DescriptionIsNil applies the IsNil predicate on the "description" field.
+func DescriptionIsNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldIsNull(FieldDescription))
+}
+
+// DescriptionNotNil applies the NotNil predicate on the "description" field.
+func DescriptionNotNil() predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldNotNull(FieldDescription))
+}
+
+// DescriptionEqualFold applies the EqualFold predicate on the "description" field.
+func DescriptionEqualFold(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldEqualFold(FieldDescription, v))
+}
+
+// DescriptionContainsFold applies the ContainsFold predicate on the "description" field.
+func DescriptionContainsFold(v string) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.FieldContainsFold(FieldDescription, v))
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.ErrorPassthroughRule) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.ErrorPassthroughRule) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.ErrorPassthroughRule) predicate.ErrorPassthroughRule {
+	return predicate.ErrorPassthroughRule(sql.NotPredicates(p))
+}

backend/ent/errorpassthroughrule_delete.go

@@ -0,0 +1,88 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/errorpassthroughrule"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+)
+
+// ErrorPassthroughRuleDelete is the builder for deleting a ErrorPassthroughRule entity.
+type ErrorPassthroughRuleDelete struct {
+	config
+	hooks    []Hook
+	mutation *ErrorPassthroughRuleMutation
+}
+
+// Where appends a list predicates to the ErrorPassthroughRuleDelete builder.
+func (_d *ErrorPassthroughRuleDelete) Where(ps ...predicate.ErrorPassthroughRule) *ErrorPassthroughRuleDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *ErrorPassthroughRuleDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *ErrorPassthroughRuleDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *ErrorPassthroughRuleDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(errorpassthroughrule.Table, sqlgraph.NewFieldSpec(errorpassthroughrule.FieldID, field.TypeInt64))
+	if ps := _d.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// ErrorPassthroughRuleDeleteOne is the builder for deleting a single ErrorPassthroughRule entity.
+type ErrorPassthroughRuleDeleteOne struct {
+	_d *ErrorPassthroughRuleDelete
+}
+
+// Where appends a list predicates to the ErrorPassthroughRuleDelete builder.
+func (_d *ErrorPassthroughRuleDeleteOne) Where(ps ...predicate.ErrorPassthroughRule) *ErrorPassthroughRuleDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *ErrorPassthroughRuleDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{errorpassthroughrule.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *ErrorPassthroughRuleDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

backend/ent/errorpassthroughrule_query.go

@@ -0,0 +1,564 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/errorpassthroughrule"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+)
+
+// ErrorPassthroughRuleQuery is the builder for querying ErrorPassthroughRule entities.
+type ErrorPassthroughRuleQuery struct {
+	config
+	ctx        *QueryContext
+	order      []errorpassthroughrule.OrderOption
+	inters     []Interceptor
+	predicates []predicate.ErrorPassthroughRule
+	modifiers  []func(*sql.Selector)
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the ErrorPassthroughRuleQuery builder.
+func (_q *ErrorPassthroughRuleQuery) Where(ps ...predicate.ErrorPassthroughRule) *ErrorPassthroughRuleQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *ErrorPassthroughRuleQuery) Limit(limit int) *ErrorPassthroughRuleQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *ErrorPassthroughRuleQuery) Offset(offset int) *ErrorPassthroughRuleQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *ErrorPassthroughRuleQuery) Unique(unique bool) *ErrorPassthroughRuleQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *ErrorPassthroughRuleQuery) Order(o ...errorpassthroughrule.OrderOption) *ErrorPassthroughRuleQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// First returns the first ErrorPassthroughRule entity from the query.
+// Returns a *NotFoundError when no ErrorPassthroughRule was found.
+func (_q *ErrorPassthroughRuleQuery) First(ctx context.Context) (*ErrorPassthroughRule, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{errorpassthroughrule.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *ErrorPassthroughRuleQuery) FirstX(ctx context.Context) *ErrorPassthroughRule {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first ErrorPassthroughRule ID from the query.
+// Returns a *NotFoundError when no ErrorPassthroughRule ID was found.
+func (_q *ErrorPassthroughRuleQuery) FirstID(ctx context.Context) (id int64, err error) {
+	var ids []int64
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{errorpassthroughrule.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *ErrorPassthroughRuleQuery) FirstIDX(ctx context.Context) int64 {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single ErrorPassthroughRule entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one ErrorPassthroughRule entity is found.
+// Returns a *NotFoundError when no ErrorPassthroughRule entities are found.
+func (_q *ErrorPassthroughRuleQuery) Only(ctx context.Context) (*ErrorPassthroughRule, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{errorpassthroughrule.Label}
+	default:
+		return nil, &NotSingularError{errorpassthroughrule.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *ErrorPassthroughRuleQuery) OnlyX(ctx context.Context) *ErrorPassthroughRule {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only ErrorPassthroughRule ID in the query.
+// Returns a *NotSingularError when more than one ErrorPassthroughRule ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *ErrorPassthroughRuleQuery) OnlyID(ctx context.Context) (id int64, err error) {
+	var ids []int64
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{errorpassthroughrule.Label}
+	default:
+		err = &NotSingularError{errorpassthroughrule.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *ErrorPassthroughRuleQuery) OnlyIDX(ctx context.Context) int64 {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of ErrorPassthroughRules.
+func (_q *ErrorPassthroughRuleQuery) All(ctx context.Context) ([]*ErrorPassthroughRule, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*ErrorPassthroughRule, *ErrorPassthroughRuleQuery]()
+	return withInterceptors[[]*ErrorPassthroughRule](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *ErrorPassthroughRuleQuery) AllX(ctx context.Context) []*ErrorPassthroughRule {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of ErrorPassthroughRule IDs.
+func (_q *ErrorPassthroughRuleQuery) IDs(ctx context.Context) (ids []int64, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(errorpassthroughrule.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *ErrorPassthroughRuleQuery) IDsX(ctx context.Context) []int64 {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *ErrorPassthroughRuleQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*ErrorPassthroughRuleQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *ErrorPassthroughRuleQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *ErrorPassthroughRuleQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *ErrorPassthroughRuleQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the ErrorPassthroughRuleQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *ErrorPassthroughRuleQuery) Clone() *ErrorPassthroughRuleQuery {
+	if _q == nil {
+		return nil
+	}
+	return &ErrorPassthroughRuleQuery{
+		config:     _q.config,
+		ctx:        _q.ctx.Clone(),
+		order:      append([]errorpassthroughrule.OrderOption{}, _q.order...),
+		inters:     append([]Interceptor{}, _q.inters...),
+		predicates: append([]predicate.ErrorPassthroughRule{}, _q.predicates...),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		CreatedAt time.Time `json:"created_at,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.ErrorPassthroughRule.Query().
+//		GroupBy(errorpassthroughrule.FieldCreatedAt).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *ErrorPassthroughRuleQuery) GroupBy(field string, fields ...string) *ErrorPassthroughRuleGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &ErrorPassthroughRuleGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = errorpassthroughrule.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		CreatedAt time.Time `json:"created_at,omitempty"`
+//	}
+//
+//	client.ErrorPassthroughRule.Query().
+//		Select(errorpassthroughrule.FieldCreatedAt).
+//		Scan(ctx, &v)
+func (_q *ErrorPassthroughRuleQuery) Select(fields ...string) *ErrorPassthroughRuleSelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &ErrorPassthroughRuleSelect{ErrorPassthroughRuleQuery: _q}
+	sbuild.label = errorpassthroughrule.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a ErrorPassthroughRuleSelect configured with the given aggregations.
+func (_q *ErrorPassthroughRuleQuery) Aggregate(fns ...AggregateFunc) *ErrorPassthroughRuleSelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *ErrorPassthroughRuleQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !errorpassthroughrule.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *ErrorPassthroughRuleQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*ErrorPassthroughRule, error) {
+	var (
+		nodes = []*ErrorPassthroughRule{}
+		_spec = _q.querySpec()
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*ErrorPassthroughRule).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &ErrorPassthroughRule{config: _q.config}
+		nodes = append(nodes, node)
+		return node.assignValues(columns, values)
+	}
+	if len(_q.modifiers) > 0 {
+		_spec.Modifiers = _q.modifiers
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	return nodes, nil
+}
+
+func (_q *ErrorPassthroughRuleQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	if len(_q.modifiers) > 0 {
+		_spec.Modifiers = _q.modifiers
+	}
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *ErrorPassthroughRuleQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(errorpassthroughrule.Table, errorpassthroughrule.Columns, sqlgraph.NewFieldSpec(errorpassthroughrule.FieldID, field.TypeInt64))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, errorpassthroughrule.FieldID)
+		for i := range fields {
+			if fields[i] != errorpassthroughrule.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *ErrorPassthroughRuleQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(errorpassthroughrule.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = errorpassthroughrule.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, m := range _q.modifiers {
+		m(selector)
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// ForUpdate locks the selected rows against concurrent updates, and prevent them from being
+// updated, deleted or "selected ... for update" by other sessions, until the transaction is
+// either committed or rolled-back.
+func (_q *ErrorPassthroughRuleQuery) ForUpdate(opts ...sql.LockOption) *ErrorPassthroughRuleQuery {
+	if _q.driver.Dialect() == dialect.Postgres {
+		_q.Unique(false)
+	}
+	_q.modifiers = append(_q.modifiers, func(s *sql.Selector) {
+		s.ForUpdate(opts...)
+	})
+	return _q
+}
+
+// ForShare behaves similarly to ForUpdate, except that it acquires a shared mode lock
+// on any rows that are read. Other sessions can read the rows, but cannot modify them
+// until your transaction commits.
+func (_q *ErrorPassthroughRuleQuery) ForShare(opts ...sql.LockOption) *ErrorPassthroughRuleQuery {
+	if _q.driver.Dialect() == dialect.Postgres {
+		_q.Unique(false)
+	}
+	_q.modifiers = append(_q.modifiers, func(s *sql.Selector) {
+		s.ForShare(opts...)
+	})
+	return _q
+}
+
+// ErrorPassthroughRuleGroupBy is the group-by builder for ErrorPassthroughRule entities.
+type ErrorPassthroughRuleGroupBy struct {
+	selector
+	build *ErrorPassthroughRuleQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *ErrorPassthroughRuleGroupBy) Aggregate(fns ...AggregateFunc) *ErrorPassthroughRuleGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *ErrorPassthroughRuleGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*ErrorPassthroughRuleQuery, *ErrorPassthroughRuleGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *ErrorPassthroughRuleGroupBy) sqlScan(ctx context.Context, root *ErrorPassthroughRuleQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// ErrorPassthroughRuleSelect is the builder for selecting fields of ErrorPassthroughRule entities.
+type ErrorPassthroughRuleSelect struct {
+	*ErrorPassthroughRuleQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *ErrorPassthroughRuleSelect) Aggregate(fns ...AggregateFunc) *ErrorPassthroughRuleSelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *ErrorPassthroughRuleSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*ErrorPassthroughRuleQuery, *ErrorPassthroughRuleSelect](ctx, _s.ErrorPassthroughRuleQuery, _s, _s.inters, v)
+}
+
+func (_s *ErrorPassthroughRuleSelect) sqlScan(ctx context.Context, root *ErrorPassthroughRuleQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

backend/ent/errorpassthroughrule_update.go

@@ -0,0 +1,823 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/dialect/sql/sqljson"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/errorpassthroughrule"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+)
+
+// ErrorPassthroughRuleUpdate is the builder for updating ErrorPassthroughRule entities.
+type ErrorPassthroughRuleUpdate struct {
+	config
+	hooks    []Hook
+	mutation *ErrorPassthroughRuleMutation
+}
+
+// Where appends a list predicates to the ErrorPassthroughRuleUpdate builder.
+func (_u *ErrorPassthroughRuleUpdate) Where(ps ...predicate.ErrorPassthroughRule) *ErrorPassthroughRuleUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (_u *ErrorPassthroughRuleUpdate) SetUpdatedAt(v time.Time) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetUpdatedAt(v)
+	return _u
+}
+
+// SetName sets the "name" field.
+func (_u *ErrorPassthroughRuleUpdate) SetName(v string) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetName(v)
+	return _u
+}
+
+// SetNillableName sets the "name" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdate) SetNillableName(v *string) *ErrorPassthroughRuleUpdate {
+	if v != nil {
+		_u.SetName(*v)
+	}
+	return _u
+}
+
+// SetEnabled sets the "enabled" field.
+func (_u *ErrorPassthroughRuleUpdate) SetEnabled(v bool) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetEnabled(v)
+	return _u
+}
+
+// SetNillableEnabled sets the "enabled" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdate) SetNillableEnabled(v *bool) *ErrorPassthroughRuleUpdate {
+	if v != nil {
+		_u.SetEnabled(*v)
+	}
+	return _u
+}
+
+// SetPriority sets the "priority" field.
+func (_u *ErrorPassthroughRuleUpdate) SetPriority(v int) *ErrorPassthroughRuleUpdate {
+	_u.mutation.ResetPriority()
+	_u.mutation.SetPriority(v)
+	return _u
+}
+
+// SetNillablePriority sets the "priority" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdate) SetNillablePriority(v *int) *ErrorPassthroughRuleUpdate {
+	if v != nil {
+		_u.SetPriority(*v)
+	}
+	return _u
+}
+
+// AddPriority adds value to the "priority" field.
+func (_u *ErrorPassthroughRuleUpdate) AddPriority(v int) *ErrorPassthroughRuleUpdate {
+	_u.mutation.AddPriority(v)
+	return _u
+}
+
+// SetErrorCodes sets the "error_codes" field.
+func (_u *ErrorPassthroughRuleUpdate) SetErrorCodes(v []int) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetErrorCodes(v)
+	return _u
+}
+
+// AppendErrorCodes appends value to the "error_codes" field.
+func (_u *ErrorPassthroughRuleUpdate) AppendErrorCodes(v []int) *ErrorPassthroughRuleUpdate {
+	_u.mutation.AppendErrorCodes(v)
+	return _u
+}
+
+// ClearErrorCodes clears the value of the "error_codes" field.
+func (_u *ErrorPassthroughRuleUpdate) ClearErrorCodes() *ErrorPassthroughRuleUpdate {
+	_u.mutation.ClearErrorCodes()
+	return _u
+}
+
+// SetKeywords sets the "keywords" field.
+func (_u *ErrorPassthroughRuleUpdate) SetKeywords(v []string) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetKeywords(v)
+	return _u
+}
+
+// AppendKeywords appends value to the "keywords" field.
+func (_u *ErrorPassthroughRuleUpdate) AppendKeywords(v []string) *ErrorPassthroughRuleUpdate {
+	_u.mutation.AppendKeywords(v)
+	return _u
+}
+
+// ClearKeywords clears the value of the "keywords" field.
+func (_u *ErrorPassthroughRuleUpdate) ClearKeywords() *ErrorPassthroughRuleUpdate {
+	_u.mutation.ClearKeywords()
+	return _u
+}
+
+// SetMatchMode sets the "match_mode" field.
+func (_u *ErrorPassthroughRuleUpdate) SetMatchMode(v string) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetMatchMode(v)
+	return _u
+}
+
+// SetNillableMatchMode sets the "match_mode" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdate) SetNillableMatchMode(v *string) *ErrorPassthroughRuleUpdate {
+	if v != nil {
+		_u.SetMatchMode(*v)
+	}
+	return _u
+}
+
+// SetPlatforms sets the "platforms" field.
+func (_u *ErrorPassthroughRuleUpdate) SetPlatforms(v []string) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetPlatforms(v)
+	return _u
+}
+
+// AppendPlatforms appends value to the "platforms" field.
+func (_u *ErrorPassthroughRuleUpdate) AppendPlatforms(v []string) *ErrorPassthroughRuleUpdate {
+	_u.mutation.AppendPlatforms(v)
+	return _u
+}
+
+// ClearPlatforms clears the value of the "platforms" field.
+func (_u *ErrorPassthroughRuleUpdate) ClearPlatforms() *ErrorPassthroughRuleUpdate {
+	_u.mutation.ClearPlatforms()
+	return _u
+}
+
+// SetPassthroughCode sets the "passthrough_code" field.
+func (_u *ErrorPassthroughRuleUpdate) SetPassthroughCode(v bool) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetPassthroughCode(v)
+	return _u
+}
+
+// SetNillablePassthroughCode sets the "passthrough_code" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdate) SetNillablePassthroughCode(v *bool) *ErrorPassthroughRuleUpdate {
+	if v != nil {
+		_u.SetPassthroughCode(*v)
+	}
+	return _u
+}
+
+// SetResponseCode sets the "response_code" field.
+func (_u *ErrorPassthroughRuleUpdate) SetResponseCode(v int) *ErrorPassthroughRuleUpdate {
+	_u.mutation.ResetResponseCode()
+	_u.mutation.SetResponseCode(v)
+	return _u
+}
+
+// SetNillableResponseCode sets the "response_code" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdate) SetNillableResponseCode(v *int) *ErrorPassthroughRuleUpdate {
+	if v != nil {
+		_u.SetResponseCode(*v)
+	}
+	return _u
+}
+
+// AddResponseCode adds value to the "response_code" field.
+func (_u *ErrorPassthroughRuleUpdate) AddResponseCode(v int) *ErrorPassthroughRuleUpdate {
+	_u.mutation.AddResponseCode(v)
+	return _u
+}
+
+// ClearResponseCode clears the value of the "response_code" field.
+func (_u *ErrorPassthroughRuleUpdate) ClearResponseCode() *ErrorPassthroughRuleUpdate {
+	_u.mutation.ClearResponseCode()
+	return _u
+}
+
+// SetPassthroughBody sets the "passthrough_body" field.
+func (_u *ErrorPassthroughRuleUpdate) SetPassthroughBody(v bool) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetPassthroughBody(v)
+	return _u
+}
+
+// SetNillablePassthroughBody sets the "passthrough_body" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdate) SetNillablePassthroughBody(v *bool) *ErrorPassthroughRuleUpdate {
+	if v != nil {
+		_u.SetPassthroughBody(*v)
+	}
+	return _u
+}
+
+// SetCustomMessage sets the "custom_message" field.
+func (_u *ErrorPassthroughRuleUpdate) SetCustomMessage(v string) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetCustomMessage(v)
+	return _u
+}
+
+// SetNillableCustomMessage sets the "custom_message" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdate) SetNillableCustomMessage(v *string) *ErrorPassthroughRuleUpdate {
+	if v != nil {
+		_u.SetCustomMessage(*v)
+	}
+	return _u
+}
+
+// ClearCustomMessage clears the value of the "custom_message" field.
+func (_u *ErrorPassthroughRuleUpdate) ClearCustomMessage() *ErrorPassthroughRuleUpdate {
+	_u.mutation.ClearCustomMessage()
+	return _u
+}
+
+// SetDescription sets the "description" field.
+func (_u *ErrorPassthroughRuleUpdate) SetDescription(v string) *ErrorPassthroughRuleUpdate {
+	_u.mutation.SetDescription(v)
+	return _u
+}
+
+// SetNillableDescription sets the "description" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdate) SetNillableDescription(v *string) *ErrorPassthroughRuleUpdate {
+	if v != nil {
+		_u.SetDescription(*v)
+	}
+	return _u
+}
+
+// ClearDescription clears the value of the "description" field.
+func (_u *ErrorPassthroughRuleUpdate) ClearDescription() *ErrorPassthroughRuleUpdate {
+	_u.mutation.ClearDescription()
+	return _u
+}
+
+// Mutation returns the ErrorPassthroughRuleMutation object of the builder.
+func (_u *ErrorPassthroughRuleUpdate) Mutation() *ErrorPassthroughRuleMutation {
+	return _u.mutation
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *ErrorPassthroughRuleUpdate) Save(ctx context.Context) (int, error) {
+	_u.defaults()
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *ErrorPassthroughRuleUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *ErrorPassthroughRuleUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *ErrorPassthroughRuleUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (_u *ErrorPassthroughRuleUpdate) defaults() {
+	if _, ok := _u.mutation.UpdatedAt(); !ok {
+		v := errorpassthroughrule.UpdateDefaultUpdatedAt()
+		_u.mutation.SetUpdatedAt(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_u *ErrorPassthroughRuleUpdate) check() error {
+	if v, ok := _u.mutation.Name(); ok {
+		if err := errorpassthroughrule.NameValidator(v); err != nil {
+			return &ValidationError{Name: "name", err: fmt.Errorf(`ent: validator failed for field "ErrorPassthroughRule.name": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.MatchMode(); ok {
+		if err := errorpassthroughrule.MatchModeValidator(v); err != nil {
+			return &ValidationError{Name: "match_mode", err: fmt.Errorf(`ent: validator failed for field "ErrorPassthroughRule.match_mode": %w`, err)}
+		}
+	}
+	return nil
+}
+
+func (_u *ErrorPassthroughRuleUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	if err := _u.check(); err != nil {
+		return _node, err
+	}
+	_spec := sqlgraph.NewUpdateSpec(errorpassthroughrule.Table, errorpassthroughrule.Columns, sqlgraph.NewFieldSpec(errorpassthroughrule.FieldID, field.TypeInt64))
+	if ps := _u.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.UpdatedAt(); ok {
+		_spec.SetField(errorpassthroughrule.FieldUpdatedAt, field.TypeTime, value)
+	}
+	if value, ok := _u.mutation.Name(); ok {
+		_spec.SetField(errorpassthroughrule.FieldName, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Enabled(); ok {
+		_spec.SetField(errorpassthroughrule.FieldEnabled, field.TypeBool, value)
+	}
+	if value, ok := _u.mutation.Priority(); ok {
+		_spec.SetField(errorpassthroughrule.FieldPriority, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedPriority(); ok {
+		_spec.AddField(errorpassthroughrule.FieldPriority, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.ErrorCodes(); ok {
+		_spec.SetField(errorpassthroughrule.FieldErrorCodes, field.TypeJSON, value)
+	}
+	if value, ok := _u.mutation.AppendedErrorCodes(); ok {
+		_spec.AddModifier(func(u *sql.UpdateBuilder) {
+			sqljson.Append(u, errorpassthroughrule.FieldErrorCodes, value)
+		})
+	}
+	if _u.mutation.ErrorCodesCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldErrorCodes, field.TypeJSON)
+	}
+	if value, ok := _u.mutation.Keywords(); ok {
+		_spec.SetField(errorpassthroughrule.FieldKeywords, field.TypeJSON, value)
+	}
+	if value, ok := _u.mutation.AppendedKeywords(); ok {
+		_spec.AddModifier(func(u *sql.UpdateBuilder) {
+			sqljson.Append(u, errorpassthroughrule.FieldKeywords, value)
+		})
+	}
+	if _u.mutation.KeywordsCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldKeywords, field.TypeJSON)
+	}
+	if value, ok := _u.mutation.MatchMode(); ok {
+		_spec.SetField(errorpassthroughrule.FieldMatchMode, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Platforms(); ok {
+		_spec.SetField(errorpassthroughrule.FieldPlatforms, field.TypeJSON, value)
+	}
+	if value, ok := _u.mutation.AppendedPlatforms(); ok {
+		_spec.AddModifier(func(u *sql.UpdateBuilder) {
+			sqljson.Append(u, errorpassthroughrule.FieldPlatforms, value)
+		})
+	}
+	if _u.mutation.PlatformsCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldPlatforms, field.TypeJSON)
+	}
+	if value, ok := _u.mutation.PassthroughCode(); ok {
+		_spec.SetField(errorpassthroughrule.FieldPassthroughCode, field.TypeBool, value)
+	}
+	if value, ok := _u.mutation.ResponseCode(); ok {
+		_spec.SetField(errorpassthroughrule.FieldResponseCode, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedResponseCode(); ok {
+		_spec.AddField(errorpassthroughrule.FieldResponseCode, field.TypeInt, value)
+	}
+	if _u.mutation.ResponseCodeCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldResponseCode, field.TypeInt)
+	}
+	if value, ok := _u.mutation.PassthroughBody(); ok {
+		_spec.SetField(errorpassthroughrule.FieldPassthroughBody, field.TypeBool, value)
+	}
+	if value, ok := _u.mutation.CustomMessage(); ok {
+		_spec.SetField(errorpassthroughrule.FieldCustomMessage, field.TypeString, value)
+	}
+	if _u.mutation.CustomMessageCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldCustomMessage, field.TypeString)
+	}
+	if value, ok := _u.mutation.Description(); ok {
+		_spec.SetField(errorpassthroughrule.FieldDescription, field.TypeString, value)
+	}
+	if _u.mutation.DescriptionCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldDescription, field.TypeString)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{errorpassthroughrule.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// ErrorPassthroughRuleUpdateOne is the builder for updating a single ErrorPassthroughRule entity.
+type ErrorPassthroughRuleUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *ErrorPassthroughRuleMutation
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetUpdatedAt(v time.Time) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetUpdatedAt(v)
+	return _u
+}
+
+// SetName sets the "name" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetName(v string) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetName(v)
+	return _u
+}
+
+// SetNillableName sets the "name" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdateOne) SetNillableName(v *string) *ErrorPassthroughRuleUpdateOne {
+	if v != nil {
+		_u.SetName(*v)
+	}
+	return _u
+}
+
+// SetEnabled sets the "enabled" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetEnabled(v bool) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetEnabled(v)
+	return _u
+}
+
+// SetNillableEnabled sets the "enabled" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdateOne) SetNillableEnabled(v *bool) *ErrorPassthroughRuleUpdateOne {
+	if v != nil {
+		_u.SetEnabled(*v)
+	}
+	return _u
+}
+
+// SetPriority sets the "priority" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetPriority(v int) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.ResetPriority()
+	_u.mutation.SetPriority(v)
+	return _u
+}
+
+// SetNillablePriority sets the "priority" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdateOne) SetNillablePriority(v *int) *ErrorPassthroughRuleUpdateOne {
+	if v != nil {
+		_u.SetPriority(*v)
+	}
+	return _u
+}
+
+// AddPriority adds value to the "priority" field.
+func (_u *ErrorPassthroughRuleUpdateOne) AddPriority(v int) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.AddPriority(v)
+	return _u
+}
+
+// SetErrorCodes sets the "error_codes" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetErrorCodes(v []int) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetErrorCodes(v)
+	return _u
+}
+
+// AppendErrorCodes appends value to the "error_codes" field.
+func (_u *ErrorPassthroughRuleUpdateOne) AppendErrorCodes(v []int) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.AppendErrorCodes(v)
+	return _u
+}
+
+// ClearErrorCodes clears the value of the "error_codes" field.
+func (_u *ErrorPassthroughRuleUpdateOne) ClearErrorCodes() *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.ClearErrorCodes()
+	return _u
+}
+
+// SetKeywords sets the "keywords" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetKeywords(v []string) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetKeywords(v)
+	return _u
+}
+
+// AppendKeywords appends value to the "keywords" field.
+func (_u *ErrorPassthroughRuleUpdateOne) AppendKeywords(v []string) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.AppendKeywords(v)
+	return _u
+}
+
+// ClearKeywords clears the value of the "keywords" field.
+func (_u *ErrorPassthroughRuleUpdateOne) ClearKeywords() *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.ClearKeywords()
+	return _u
+}
+
+// SetMatchMode sets the "match_mode" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetMatchMode(v string) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetMatchMode(v)
+	return _u
+}
+
+// SetNillableMatchMode sets the "match_mode" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdateOne) SetNillableMatchMode(v *string) *ErrorPassthroughRuleUpdateOne {
+	if v != nil {
+		_u.SetMatchMode(*v)
+	}
+	return _u
+}
+
+// SetPlatforms sets the "platforms" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetPlatforms(v []string) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetPlatforms(v)
+	return _u
+}
+
+// AppendPlatforms appends value to the "platforms" field.
+func (_u *ErrorPassthroughRuleUpdateOne) AppendPlatforms(v []string) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.AppendPlatforms(v)
+	return _u
+}
+
+// ClearPlatforms clears the value of the "platforms" field.
+func (_u *ErrorPassthroughRuleUpdateOne) ClearPlatforms() *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.ClearPlatforms()
+	return _u
+}
+
+// SetPassthroughCode sets the "passthrough_code" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetPassthroughCode(v bool) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetPassthroughCode(v)
+	return _u
+}
+
+// SetNillablePassthroughCode sets the "passthrough_code" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdateOne) SetNillablePassthroughCode(v *bool) *ErrorPassthroughRuleUpdateOne {
+	if v != nil {
+		_u.SetPassthroughCode(*v)
+	}
+	return _u
+}
+
+// SetResponseCode sets the "response_code" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetResponseCode(v int) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.ResetResponseCode()
+	_u.mutation.SetResponseCode(v)
+	return _u
+}
+
+// SetNillableResponseCode sets the "response_code" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdateOne) SetNillableResponseCode(v *int) *ErrorPassthroughRuleUpdateOne {
+	if v != nil {
+		_u.SetResponseCode(*v)
+	}
+	return _u
+}
+
+// AddResponseCode adds value to the "response_code" field.
+func (_u *ErrorPassthroughRuleUpdateOne) AddResponseCode(v int) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.AddResponseCode(v)
+	return _u
+}
+
+// ClearResponseCode clears the value of the "response_code" field.
+func (_u *ErrorPassthroughRuleUpdateOne) ClearResponseCode() *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.ClearResponseCode()
+	return _u
+}
+
+// SetPassthroughBody sets the "passthrough_body" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetPassthroughBody(v bool) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetPassthroughBody(v)
+	return _u
+}
+
+// SetNillablePassthroughBody sets the "passthrough_body" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdateOne) SetNillablePassthroughBody(v *bool) *ErrorPassthroughRuleUpdateOne {
+	if v != nil {
+		_u.SetPassthroughBody(*v)
+	}
+	return _u
+}
+
+// SetCustomMessage sets the "custom_message" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetCustomMessage(v string) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetCustomMessage(v)
+	return _u
+}
+
+// SetNillableCustomMessage sets the "custom_message" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdateOne) SetNillableCustomMessage(v *string) *ErrorPassthroughRuleUpdateOne {
+	if v != nil {
+		_u.SetCustomMessage(*v)
+	}
+	return _u
+}
+
+// ClearCustomMessage clears the value of the "custom_message" field.
+func (_u *ErrorPassthroughRuleUpdateOne) ClearCustomMessage() *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.ClearCustomMessage()
+	return _u
+}
+
+// SetDescription sets the "description" field.
+func (_u *ErrorPassthroughRuleUpdateOne) SetDescription(v string) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.SetDescription(v)
+	return _u
+}
+
+// SetNillableDescription sets the "description" field if the given value is not nil.
+func (_u *ErrorPassthroughRuleUpdateOne) SetNillableDescription(v *string) *ErrorPassthroughRuleUpdateOne {
+	if v != nil {
+		_u.SetDescription(*v)
+	}
+	return _u
+}
+
+// ClearDescription clears the value of the "description" field.
+func (_u *ErrorPassthroughRuleUpdateOne) ClearDescription() *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.ClearDescription()
+	return _u
+}
+
+// Mutation returns the ErrorPassthroughRuleMutation object of the builder.
+func (_u *ErrorPassthroughRuleUpdateOne) Mutation() *ErrorPassthroughRuleMutation {
+	return _u.mutation
+}
+
+// Where appends a list predicates to the ErrorPassthroughRuleUpdate builder.
+func (_u *ErrorPassthroughRuleUpdateOne) Where(ps ...predicate.ErrorPassthroughRule) *ErrorPassthroughRuleUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *ErrorPassthroughRuleUpdateOne) Select(field string, fields ...string) *ErrorPassthroughRuleUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated ErrorPassthroughRule entity.
+func (_u *ErrorPassthroughRuleUpdateOne) Save(ctx context.Context) (*ErrorPassthroughRule, error) {
+	_u.defaults()
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *ErrorPassthroughRuleUpdateOne) SaveX(ctx context.Context) *ErrorPassthroughRule {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *ErrorPassthroughRuleUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *ErrorPassthroughRuleUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (_u *ErrorPassthroughRuleUpdateOne) defaults() {
+	if _, ok := _u.mutation.UpdatedAt(); !ok {
+		v := errorpassthroughrule.UpdateDefaultUpdatedAt()
+		_u.mutation.SetUpdatedAt(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_u *ErrorPassthroughRuleUpdateOne) check() error {
+	if v, ok := _u.mutation.Name(); ok {
+		if err := errorpassthroughrule.NameValidator(v); err != nil {
+			return &ValidationError{Name: "name", err: fmt.Errorf(`ent: validator failed for field "ErrorPassthroughRule.name": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.MatchMode(); ok {
+		if err := errorpassthroughrule.MatchModeValidator(v); err != nil {
+			return &ValidationError{Name: "match_mode", err: fmt.Errorf(`ent: validator failed for field "ErrorPassthroughRule.match_mode": %w`, err)}
+		}
+	}
+	return nil
+}
+
+func (_u *ErrorPassthroughRuleUpdateOne) sqlSave(ctx context.Context) (_node *ErrorPassthroughRule, err error) {
+	if err := _u.check(); err != nil {
+		return _node, err
+	}
+	_spec := sqlgraph.NewUpdateSpec(errorpassthroughrule.Table, errorpassthroughrule.Columns, sqlgraph.NewFieldSpec(errorpassthroughrule.FieldID, field.TypeInt64))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "ErrorPassthroughRule.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, errorpassthroughrule.FieldID)
+		for _, f := range fields {
+			if !errorpassthroughrule.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != errorpassthroughrule.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.UpdatedAt(); ok {
+		_spec.SetField(errorpassthroughrule.FieldUpdatedAt, field.TypeTime, value)
+	}
+	if value, ok := _u.mutation.Name(); ok {
+		_spec.SetField(errorpassthroughrule.FieldName, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Enabled(); ok {
+		_spec.SetField(errorpassthroughrule.FieldEnabled, field.TypeBool, value)
+	}
+	if value, ok := _u.mutation.Priority(); ok {
+		_spec.SetField(errorpassthroughrule.FieldPriority, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedPriority(); ok {
+		_spec.AddField(errorpassthroughrule.FieldPriority, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.ErrorCodes(); ok {
+		_spec.SetField(errorpassthroughrule.FieldErrorCodes, field.TypeJSON, value)
+	}
+	if value, ok := _u.mutation.AppendedErrorCodes(); ok {
+		_spec.AddModifier(func(u *sql.UpdateBuilder) {
+			sqljson.Append(u, errorpassthroughrule.FieldErrorCodes, value)
+		})
+	}
+	if _u.mutation.ErrorCodesCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldErrorCodes, field.TypeJSON)
+	}
+	if value, ok := _u.mutation.Keywords(); ok {
+		_spec.SetField(errorpassthroughrule.FieldKeywords, field.TypeJSON, value)
+	}
+	if value, ok := _u.mutation.AppendedKeywords(); ok {
+		_spec.AddModifier(func(u *sql.UpdateBuilder) {
+			sqljson.Append(u, errorpassthroughrule.FieldKeywords, value)
+		})
+	}
+	if _u.mutation.KeywordsCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldKeywords, field.TypeJSON)
+	}
+	if value, ok := _u.mutation.MatchMode(); ok {
+		_spec.SetField(errorpassthroughrule.FieldMatchMode, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Platforms(); ok {
+		_spec.SetField(errorpassthroughrule.FieldPlatforms, field.TypeJSON, value)
+	}
+	if value, ok := _u.mutation.AppendedPlatforms(); ok {
+		_spec.AddModifier(func(u *sql.UpdateBuilder) {
+			sqljson.Append(u, errorpassthroughrule.FieldPlatforms, value)
+		})
+	}
+	if _u.mutation.PlatformsCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldPlatforms, field.TypeJSON)
+	}
+	if value, ok := _u.mutation.PassthroughCode(); ok {
+		_spec.SetField(errorpassthroughrule.FieldPassthroughCode, field.TypeBool, value)
+	}
+	if value, ok := _u.mutation.ResponseCode(); ok {
+		_spec.SetField(errorpassthroughrule.FieldResponseCode, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedResponseCode(); ok {
+		_spec.AddField(errorpassthroughrule.FieldResponseCode, field.TypeInt, value)
+	}
+	if _u.mutation.ResponseCodeCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldResponseCode, field.TypeInt)
+	}
+	if value, ok := _u.mutation.PassthroughBody(); ok {
+		_spec.SetField(errorpassthroughrule.FieldPassthroughBody, field.TypeBool, value)
+	}
+	if value, ok := _u.mutation.CustomMessage(); ok {
+		_spec.SetField(errorpassthroughrule.FieldCustomMessage, field.TypeString, value)
+	}
+	if _u.mutation.CustomMessageCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldCustomMessage, field.TypeString)
+	}
+	if value, ok := _u.mutation.Description(); ok {
+		_spec.SetField(errorpassthroughrule.FieldDescription, field.TypeString, value)
+	}
+	if _u.mutation.DescriptionCleared() {
+		_spec.ClearField(errorpassthroughrule.FieldDescription, field.TypeString)
+	}
+	_node = &ErrorPassthroughRule{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{errorpassthroughrule.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}

backend/ent/hook/hook.go

@@ -69,6 +69,18 @@ func (f AnnouncementReadFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.V
 	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.AnnouncementReadMutation", m)
 }
 
+// The ErrorPassthroughRuleFunc type is an adapter to allow the use of ordinary
+// function as ErrorPassthroughRule mutator.
+type ErrorPassthroughRuleFunc func(context.Context, *ent.ErrorPassthroughRuleMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f ErrorPassthroughRuleFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.ErrorPassthroughRuleMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.ErrorPassthroughRuleMutation", m)
+}
+
 // The GroupFunc type is an adapter to allow the use of ordinary
 // function as Group mutator.
 type GroupFunc func(context.Context, *ent.GroupMutation) (ent.Value, error)

backend/ent/intercept/intercept.go

@@ -13,6 +13,7 @@ import (
 	"github.com/Wei-Shaw/sub2api/ent/announcement"
 	"github.com/Wei-Shaw/sub2api/ent/announcementread"
 	"github.com/Wei-Shaw/sub2api/ent/apikey"
+	"github.com/Wei-Shaw/sub2api/ent/errorpassthroughrule"
 	"github.com/Wei-Shaw/sub2api/ent/group"
 	"github.com/Wei-Shaw/sub2api/ent/predicate"
 	"github.com/Wei-Shaw/sub2api/ent/promocode"
@@ -220,6 +221,33 @@ func (f TraverseAnnouncementRead) Traverse(ctx context.Context, q ent.Query) err
 	return fmt.Errorf("unexpected query type %T. expect *ent.AnnouncementReadQuery", q)
 }
 
+// The ErrorPassthroughRuleFunc type is an adapter to allow the use of ordinary function as a Querier.
+type ErrorPassthroughRuleFunc func(context.Context, *ent.ErrorPassthroughRuleQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f ErrorPassthroughRuleFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.ErrorPassthroughRuleQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.ErrorPassthroughRuleQuery", q)
+}
+
+// The TraverseErrorPassthroughRule type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseErrorPassthroughRule func(context.Context, *ent.ErrorPassthroughRuleQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseErrorPassthroughRule) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseErrorPassthroughRule) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.ErrorPassthroughRuleQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.ErrorPassthroughRuleQuery", q)
+}
+
 // The GroupFunc type is an adapter to allow the use of ordinary function as a Querier.
 type GroupFunc func(context.Context, *ent.GroupQuery) (ent.Value, error)
 
@@ -584,6 +612,8 @@ func NewQuery(q ent.Query) (Query, error) {
 		return &query[*ent.AnnouncementQuery, predicate.Announcement, announcement.OrderOption]{typ: ent.TypeAnnouncement, tq: q}, nil
 	case *ent.AnnouncementReadQuery:
 		return &query[*ent.AnnouncementReadQuery, predicate.AnnouncementRead, announcementread.OrderOption]{typ: ent.TypeAnnouncementRead, tq: q}, nil
+	case *ent.ErrorPassthroughRuleQuery:
+		return &query[*ent.ErrorPassthroughRuleQuery, predicate.ErrorPassthroughRule, errorpassthroughrule.OrderOption]{typ: ent.TypeErrorPassthroughRule, tq: q}, nil
 	case *ent.GroupQuery:
 		return &query[*ent.GroupQuery, predicate.Group, group.OrderOption]{typ: ent.TypeGroup, tq: q}, nil
 	case *ent.PromoCodeQuery:

backend/ent/migrate/schema.go

@@ -309,6 +309,42 @@ var (
 			},
 		},
 	}
+	// ErrorPassthroughRulesColumns holds the columns for the "error_passthrough_rules" table.
+	ErrorPassthroughRulesColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt64, Increment: true},
+		{Name: "created_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "updated_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "name", Type: field.TypeString, Size: 100},
+		{Name: "enabled", Type: field.TypeBool, Default: true},
+		{Name: "priority", Type: field.TypeInt, Default: 0},
+		{Name: "error_codes", Type: field.TypeJSON, Nullable: true, SchemaType: map[string]string{"postgres": "jsonb"}},
+		{Name: "keywords", Type: field.TypeJSON, Nullable: true, SchemaType: map[string]string{"postgres": "jsonb"}},
+		{Name: "match_mode", Type: field.TypeString, Size: 10, Default: "any"},
+		{Name: "platforms", Type: field.TypeJSON, Nullable: true, SchemaType: map[string]string{"postgres": "jsonb"}},
+		{Name: "passthrough_code", Type: field.TypeBool, Default: true},
+		{Name: "response_code", Type: field.TypeInt, Nullable: true},
+		{Name: "passthrough_body", Type: field.TypeBool, Default: true},
+		{Name: "custom_message", Type: field.TypeString, Nullable: true, Size: 2147483647},
+		{Name: "description", Type: field.TypeString, Nullable: true, Size: 2147483647},
+	}
+	// ErrorPassthroughRulesTable holds the schema information for the "error_passthrough_rules" table.
+	ErrorPassthroughRulesTable = &schema.Table{
+		Name:       "error_passthrough_rules",
+		Columns:    ErrorPassthroughRulesColumns,
+		PrimaryKey: []*schema.Column{ErrorPassthroughRulesColumns[0]},
+		Indexes: []*schema.Index{
+			{
+				Name:    "errorpassthroughrule_enabled",
+				Unique:  false,
+				Columns: []*schema.Column{ErrorPassthroughRulesColumns[4]},
+			},
+			{
+				Name:    "errorpassthroughrule_priority",
+				Unique:  false,
+				Columns: []*schema.Column{ErrorPassthroughRulesColumns[5]},
+			},
+		},
+	}
 	// GroupsColumns holds the columns for the "groups" table.
 	GroupsColumns = []*schema.Column{
 		{Name: "id", Type: field.TypeInt64, Increment: true},
@@ -950,6 +986,7 @@ var (
 		AccountGroupsTable,
 		AnnouncementsTable,
 		AnnouncementReadsTable,
+		ErrorPassthroughRulesTable,
 		GroupsTable,
 		PromoCodesTable,
 		PromoCodeUsagesTable,
@@ -989,6 +1026,9 @@ func init() {
 	AnnouncementReadsTable.Annotation = &entsql.Annotation{
 		Table: "announcement_reads",
 	}
+	ErrorPassthroughRulesTable.Annotation = &entsql.Annotation{
+		Table: "error_passthrough_rules",
+	}
 	GroupsTable.Annotation = &entsql.Annotation{
 		Table: "groups",
 	}

backend/ent/predicate/predicate.go

@@ -21,6 +21,9 @@ type Announcement func(*sql.Selector)
 // AnnouncementRead is the predicate function for announcementread builders.
 type AnnouncementRead func(*sql.Selector)
 
+// ErrorPassthroughRule is the predicate function for errorpassthroughrule builders.
+type ErrorPassthroughRule func(*sql.Selector)
+
 // Group is the predicate function for group builders.
 type Group func(*sql.Selector)
 

backend/ent/runtime/runtime.go

@@ -10,6 +10,7 @@ import (
 	"github.com/Wei-Shaw/sub2api/ent/announcement"
 	"github.com/Wei-Shaw/sub2api/ent/announcementread"
 	"github.com/Wei-Shaw/sub2api/ent/apikey"
+	"github.com/Wei-Shaw/sub2api/ent/errorpassthroughrule"
 	"github.com/Wei-Shaw/sub2api/ent/group"
 	"github.com/Wei-Shaw/sub2api/ent/promocode"
 	"github.com/Wei-Shaw/sub2api/ent/promocodeusage"
@@ -270,6 +271,61 @@ func init() {
 	announcementreadDescCreatedAt := announcementreadFields[3].Descriptor()
 	// announcementread.DefaultCreatedAt holds the default value on creation for the created_at field.
 	announcementread.DefaultCreatedAt = announcementreadDescCreatedAt.Default.(func() time.Time)
+	errorpassthroughruleMixin := schema.ErrorPassthroughRule{}.Mixin()
+	errorpassthroughruleMixinFields0 := errorpassthroughruleMixin[0].Fields()
+	_ = errorpassthroughruleMixinFields0
+	errorpassthroughruleFields := schema.ErrorPassthroughRule{}.Fields()
+	_ = errorpassthroughruleFields
+	// errorpassthroughruleDescCreatedAt is the schema descriptor for created_at field.
+	errorpassthroughruleDescCreatedAt := errorpassthroughruleMixinFields0[0].Descriptor()
+	// errorpassthroughrule.DefaultCreatedAt holds the default value on creation for the created_at field.
+	errorpassthroughrule.DefaultCreatedAt = errorpassthroughruleDescCreatedAt.Default.(func() time.Time)
+	// errorpassthroughruleDescUpdatedAt is the schema descriptor for updated_at field.
+	errorpassthroughruleDescUpdatedAt := errorpassthroughruleMixinFields0[1].Descriptor()
+	// errorpassthroughrule.DefaultUpdatedAt holds the default value on creation for the updated_at field.
+	errorpassthroughrule.DefaultUpdatedAt = errorpassthroughruleDescUpdatedAt.Default.(func() time.Time)
+	// errorpassthroughrule.UpdateDefaultUpdatedAt holds the default value on update for the updated_at field.
+	errorpassthroughrule.UpdateDefaultUpdatedAt = errorpassthroughruleDescUpdatedAt.UpdateDefault.(func() time.Time)
+	// errorpassthroughruleDescName is the schema descriptor for name field.
+	errorpassthroughruleDescName := errorpassthroughruleFields[0].Descriptor()
+	// errorpassthroughrule.NameValidator is a validator for the "name" field. It is called by the builders before save.
+	errorpassthroughrule.NameValidator = func() func(string) error {
+		validators := errorpassthroughruleDescName.Validators
+		fns := [...]func(string) error{
+			validators[0].(func(string) error),
+			validators[1].(func(string) error),
+		}
+		return func(name string) error {
+			for _, fn := range fns {
+				if err := fn(name); err != nil {
+					return err
+				}
+			}
+			return nil
+		}
+	}()
+	// errorpassthroughruleDescEnabled is the schema descriptor for enabled field.
+	errorpassthroughruleDescEnabled := errorpassthroughruleFields[1].Descriptor()
+	// errorpassthroughrule.DefaultEnabled holds the default value on creation for the enabled field.
+	errorpassthroughrule.DefaultEnabled = errorpassthroughruleDescEnabled.Default.(bool)
+	// errorpassthroughruleDescPriority is the schema descriptor for priority field.
+	errorpassthroughruleDescPriority := errorpassthroughruleFields[2].Descriptor()
+	// errorpassthroughrule.DefaultPriority holds the default value on creation for the priority field.
+	errorpassthroughrule.DefaultPriority = errorpassthroughruleDescPriority.Default.(int)
+	// errorpassthroughruleDescMatchMode is the schema descriptor for match_mode field.
+	errorpassthroughruleDescMatchMode := errorpassthroughruleFields[5].Descriptor()
+	// errorpassthroughrule.DefaultMatchMode holds the default value on creation for the match_mode field.
+	errorpassthroughrule.DefaultMatchMode = errorpassthroughruleDescMatchMode.Default.(string)
+	// errorpassthroughrule.MatchModeValidator is a validator for the "match_mode" field. It is called by the builders before save.
+	errorpassthroughrule.MatchModeValidator = errorpassthroughruleDescMatchMode.Validators[0].(func(string) error)
+	// errorpassthroughruleDescPassthroughCode is the schema descriptor for passthrough_code field.
+	errorpassthroughruleDescPassthroughCode := errorpassthroughruleFields[7].Descriptor()
+	// errorpassthroughrule.DefaultPassthroughCode holds the default value on creation for the passthrough_code field.
+	errorpassthroughrule.DefaultPassthroughCode = errorpassthroughruleDescPassthroughCode.Default.(bool)
+	// errorpassthroughruleDescPassthroughBody is the schema descriptor for passthrough_body field.
+	errorpassthroughruleDescPassthroughBody := errorpassthroughruleFields[9].Descriptor()
+	// errorpassthroughrule.DefaultPassthroughBody holds the default value on creation for the passthrough_body field.
+	errorpassthroughrule.DefaultPassthroughBody = errorpassthroughruleDescPassthroughBody.Default.(bool)
 	groupMixin := schema.Group{}.Mixin()
 	groupMixinHooks1 := groupMixin[1].Hooks()
 	group.Hooks[0] = groupMixinHooks1[0]

backend/ent/schema/error_passthrough_rule.go

@@ -0,0 +1,121 @@
+// Package schema 定义 Ent ORM 的数据库 schema。
+package schema
+
+import (
+	"github.com/Wei-Shaw/sub2api/ent/schema/mixins"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/entsql"
+	"entgo.io/ent/schema"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/index"
+)
+
+// ErrorPassthroughRule 定义全局错误透传规则的 schema。
+//
+// 错误透传规则用于控制上游错误如何返回给客户端：
+//   - 匹配条件：错误码 + 关键词组合
+//   - 响应行为：透传原始信息 或 自定义错误信息
+//   - 响应状态码：可指定返回给客户端的状态码
+//   - 平台范围：规则适用的平台（Anthropic、OpenAI、Gemini、Antigravity）
+type ErrorPassthroughRule struct {
+	ent.Schema
+}
+
+// Annotations 返回 schema 的注解配置。
+func (ErrorPassthroughRule) Annotations() []schema.Annotation {
+	return []schema.Annotation{
+		entsql.Annotation{Table: "error_passthrough_rules"},
+	}
+}
+
+// Mixin 返回该 schema 使用的混入组件。
+func (ErrorPassthroughRule) Mixin() []ent.Mixin {
+	return []ent.Mixin{
+		mixins.TimeMixin{},
+	}
+}
+
+// Fields 定义错误透传规则实体的所有字段。
+func (ErrorPassthroughRule) Fields() []ent.Field {
+	return []ent.Field{
+		// name: 规则名称，用于在界面中标识规则
+		field.String("name").
+			MaxLen(100).
+			NotEmpty(),
+
+		// enabled: 是否启用该规则
+		field.Bool("enabled").
+			Default(true),
+
+		// priority: 规则优先级，数值越小优先级越高
+		// 匹配时按优先级顺序检查，命中第一个匹配的规则
+		field.Int("priority").
+			Default(0),
+
+		// error_codes: 匹配的错误码列表（OR关系）
+		// 例如：[422, 400] 表示匹配 422 或 400 错误码
+		field.JSON("error_codes", []int{}).
+			Optional().
+			SchemaType(map[string]string{dialect.Postgres: "jsonb"}),
+
+		// keywords: 匹配的关键词列表（OR关系）
+		// 例如：["context limit", "model not supported"]
+		// 关键词匹配不区分大小写
+		field.JSON("keywords", []string{}).
+			Optional().
+			SchemaType(map[string]string{dialect.Postgres: "jsonb"}),
+
+		// match_mode: 匹配模式
+		// - "any": 错误码匹配 OR 关键词匹配（任一条件满足即可）
+		// - "all": 错误码匹配 AND 关键词匹配（所有条件都必须满足）
+		field.String("match_mode").
+			MaxLen(10).
+			Default("any"),
+
+		// platforms: 适用平台列表
+		// 例如：["anthropic", "openai", "gemini", "antigravity"]
+		// 空列表表示适用于所有平台
+		field.JSON("platforms", []string{}).
+			Optional().
+			SchemaType(map[string]string{dialect.Postgres: "jsonb"}),
+
+		// passthrough_code: 是否透传上游原始状态码
+		// true: 使用上游返回的状态码
+		// false: 使用 response_code 指定的状态码
+		field.Bool("passthrough_code").
+			Default(true),
+
+		// response_code: 自定义响应状态码
+		// 当 passthrough_code=false 时使用此状态码
+		field.Int("response_code").
+			Optional().
+			Nillable(),
+
+		// passthrough_body: 是否透传上游原始错误信息
+		// true: 使用上游返回的错误信息
+		// false: 使用 custom_message 指定的错误信息
+		field.Bool("passthrough_body").
+			Default(true),
+
+		// custom_message: 自定义错误信息
+		// 当 passthrough_body=false 时使用此错误信息
+		field.Text("custom_message").
+			Optional().
+			Nillable(),
+
+		// description: 规则描述，用于说明规则的用途
+		field.Text("description").
+			Optional().
+			Nillable(),
+	}
+}
+
+// Indexes 定义数据库索引，优化查询性能。
+func (ErrorPassthroughRule) Indexes() []ent.Index {
+	return []ent.Index{
+		index.Fields("enabled"),  // 筛选启用的规则
+		index.Fields("priority"), // 按优先级排序
+	}
+}

backend/ent/tx.go

@@ -24,6 +24,8 @@ type Tx struct {
 	Announcement *AnnouncementClient
 	// AnnouncementRead is the client for interacting with the AnnouncementRead builders.
 	AnnouncementRead *AnnouncementReadClient
+	// ErrorPassthroughRule is the client for interacting with the ErrorPassthroughRule builders.
+	ErrorPassthroughRule *ErrorPassthroughRuleClient
 	// Group is the client for interacting with the Group builders.
 	Group *GroupClient
 	// PromoCode is the client for interacting with the PromoCode builders.
@@ -186,6 +188,7 @@ func (tx *Tx) init() {
 	tx.AccountGroup = NewAccountGroupClient(tx.config)
 	tx.Announcement = NewAnnouncementClient(tx.config)
 	tx.AnnouncementRead = NewAnnouncementReadClient(tx.config)
+	tx.ErrorPassthroughRule = NewErrorPassthroughRuleClient(tx.config)
 	tx.Group = NewGroupClient(tx.config)
 	tx.PromoCode = NewPromoCodeClient(tx.config)
 	tx.PromoCodeUsage = NewPromoCodeUsageClient(tx.config)

backend/internal/handler/admin/error_passthrough_handler.go

@@ -0,0 +1,273 @@
+package admin
+
+import (
+	"strconv"
+
+	"github.com/Wei-Shaw/sub2api/internal/model"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/response"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/gin-gonic/gin"
+)
+
+// ErrorPassthroughHandler 处理错误透传规则的 HTTP 请求
+type ErrorPassthroughHandler struct {
+	service *service.ErrorPassthroughService
+}
+
+// NewErrorPassthroughHandler 创建错误透传规则处理器
+func NewErrorPassthroughHandler(service *service.ErrorPassthroughService) *ErrorPassthroughHandler {
+	return &ErrorPassthroughHandler{service: service}
+}
+
+// CreateErrorPassthroughRuleRequest 创建规则请求
+type CreateErrorPassthroughRuleRequest struct {
+	Name            string   `json:"name" binding:"required"`
+	Enabled         *bool    `json:"enabled"`
+	Priority        int      `json:"priority"`
+	ErrorCodes      []int    `json:"error_codes"`
+	Keywords        []string `json:"keywords"`
+	MatchMode       string   `json:"match_mode"`
+	Platforms       []string `json:"platforms"`
+	PassthroughCode *bool    `json:"passthrough_code"`
+	ResponseCode    *int     `json:"response_code"`
+	PassthroughBody *bool    `json:"passthrough_body"`
+	CustomMessage   *string  `json:"custom_message"`
+	Description     *string  `json:"description"`
+}
+
+// UpdateErrorPassthroughRuleRequest 更新规则请求（部分更新，所有字段可选）
+type UpdateErrorPassthroughRuleRequest struct {
+	Name            *string  `json:"name"`
+	Enabled         *bool    `json:"enabled"`
+	Priority        *int     `json:"priority"`
+	ErrorCodes      []int    `json:"error_codes"`
+	Keywords        []string `json:"keywords"`
+	MatchMode       *string  `json:"match_mode"`
+	Platforms       []string `json:"platforms"`
+	PassthroughCode *bool    `json:"passthrough_code"`
+	ResponseCode    *int     `json:"response_code"`
+	PassthroughBody *bool    `json:"passthrough_body"`
+	CustomMessage   *string  `json:"custom_message"`
+	Description     *string  `json:"description"`
+}
+
+// List 获取所有规则
+// GET /api/v1/admin/error-passthrough-rules
+func (h *ErrorPassthroughHandler) List(c *gin.Context) {
+	rules, err := h.service.List(c.Request.Context())
+	if err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+	response.Success(c, rules)
+}
+
+// GetByID 根据 ID 获取规则
+// GET /api/v1/admin/error-passthrough-rules/:id
+func (h *ErrorPassthroughHandler) GetByID(c *gin.Context) {
+	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
+	if err != nil {
+		response.BadRequest(c, "Invalid rule ID")
+		return
+	}
+
+	rule, err := h.service.GetByID(c.Request.Context(), id)
+	if err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+	if rule == nil {
+		response.NotFound(c, "Rule not found")
+		return
+	}
+
+	response.Success(c, rule)
+}
+
+// Create 创建规则
+// POST /api/v1/admin/error-passthrough-rules
+func (h *ErrorPassthroughHandler) Create(c *gin.Context) {
+	var req CreateErrorPassthroughRuleRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, "Invalid request: "+err.Error())
+		return
+	}
+
+	rule := &model.ErrorPassthroughRule{
+		Name:       req.Name,
+		Priority:   req.Priority,
+		ErrorCodes: req.ErrorCodes,
+		Keywords:   req.Keywords,
+		Platforms:  req.Platforms,
+	}
+
+	// 设置默认值
+	if req.Enabled != nil {
+		rule.Enabled = *req.Enabled
+	} else {
+		rule.Enabled = true
+	}
+	if req.MatchMode != "" {
+		rule.MatchMode = req.MatchMode
+	} else {
+		rule.MatchMode = model.MatchModeAny
+	}
+	if req.PassthroughCode != nil {
+		rule.PassthroughCode = *req.PassthroughCode
+	} else {
+		rule.PassthroughCode = true
+	}
+	if req.PassthroughBody != nil {
+		rule.PassthroughBody = *req.PassthroughBody
+	} else {
+		rule.PassthroughBody = true
+	}
+	rule.ResponseCode = req.ResponseCode
+	rule.CustomMessage = req.CustomMessage
+	rule.Description = req.Description
+
+	// 确保切片不为 nil
+	if rule.ErrorCodes == nil {
+		rule.ErrorCodes = []int{}
+	}
+	if rule.Keywords == nil {
+		rule.Keywords = []string{}
+	}
+	if rule.Platforms == nil {
+		rule.Platforms = []string{}
+	}
+
+	created, err := h.service.Create(c.Request.Context(), rule)
+	if err != nil {
+		if _, ok := err.(*model.ValidationError); ok {
+			response.BadRequest(c, err.Error())
+			return
+		}
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, created)
+}
+
+// Update 更新规则（支持部分更新）
+// PUT /api/v1/admin/error-passthrough-rules/:id
+func (h *ErrorPassthroughHandler) Update(c *gin.Context) {
+	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
+	if err != nil {
+		response.BadRequest(c, "Invalid rule ID")
+		return
+	}
+
+	var req UpdateErrorPassthroughRuleRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, "Invalid request: "+err.Error())
+		return
+	}
+
+	// 先获取现有规则
+	existing, err := h.service.GetByID(c.Request.Context(), id)
+	if err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+	if existing == nil {
+		response.NotFound(c, "Rule not found")
+		return
+	}
+
+	// 部分更新：只更新请求中提供的字段
+	rule := &model.ErrorPassthroughRule{
+		ID:              id,
+		Name:            existing.Name,
+		Enabled:         existing.Enabled,
+		Priority:        existing.Priority,
+		ErrorCodes:      existing.ErrorCodes,
+		Keywords:        existing.Keywords,
+		MatchMode:       existing.MatchMode,
+		Platforms:       existing.Platforms,
+		PassthroughCode: existing.PassthroughCode,
+		ResponseCode:    existing.ResponseCode,
+		PassthroughBody: existing.PassthroughBody,
+		CustomMessage:   existing.CustomMessage,
+		Description:     existing.Description,
+	}
+
+	// 应用请求中提供的更新
+	if req.Name != nil {
+		rule.Name = *req.Name
+	}
+	if req.Enabled != nil {
+		rule.Enabled = *req.Enabled
+	}
+	if req.Priority != nil {
+		rule.Priority = *req.Priority
+	}
+	if req.ErrorCodes != nil {
+		rule.ErrorCodes = req.ErrorCodes
+	}
+	if req.Keywords != nil {
+		rule.Keywords = req.Keywords
+	}
+	if req.MatchMode != nil {
+		rule.MatchMode = *req.MatchMode
+	}
+	if req.Platforms != nil {
+		rule.Platforms = req.Platforms
+	}
+	if req.PassthroughCode != nil {
+		rule.PassthroughCode = *req.PassthroughCode
+	}
+	if req.ResponseCode != nil {
+		rule.ResponseCode = req.ResponseCode
+	}
+	if req.PassthroughBody != nil {
+		rule.PassthroughBody = *req.PassthroughBody
+	}
+	if req.CustomMessage != nil {
+		rule.CustomMessage = req.CustomMessage
+	}
+	if req.Description != nil {
+		rule.Description = req.Description
+	}
+
+	// 确保切片不为 nil
+	if rule.ErrorCodes == nil {
+		rule.ErrorCodes = []int{}
+	}
+	if rule.Keywords == nil {
+		rule.Keywords = []string{}
+	}
+	if rule.Platforms == nil {
+		rule.Platforms = []string{}
+	}
+
+	updated, err := h.service.Update(c.Request.Context(), rule)
+	if err != nil {
+		if _, ok := err.(*model.ValidationError); ok {
+			response.BadRequest(c, err.Error())
+			return
+		}
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, updated)
+}
+
+// Delete 删除规则
+// DELETE /api/v1/admin/error-passthrough-rules/:id
+func (h *ErrorPassthroughHandler) Delete(c *gin.Context) {
+	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
+	if err != nil {
+		response.BadRequest(c, "Invalid rule ID")
+		return
+	}
+
+	if err := h.service.Delete(c.Request.Context(), id); err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, gin.H{"message": "Rule deleted successfully"})
+}

backend/internal/handler/gateway_handler.go

@@ -33,6 +33,7 @@ type GatewayHandler struct {
 	billingCacheService       *service.BillingCacheService
 	usageService              *service.UsageService
 	apiKeyService             *service.APIKeyService
+	errorPassthroughService   *service.ErrorPassthroughService
 	concurrencyHelper         *ConcurrencyHelper
 	maxAccountSwitches        int
 	maxAccountSwitchesGemini  int
@@ -48,6 +49,7 @@ func NewGatewayHandler(
 	billingCacheService *service.BillingCacheService,
 	usageService *service.UsageService,
 	apiKeyService *service.APIKeyService,
+	errorPassthroughService *service.ErrorPassthroughService,
 	cfg *config.Config,
 ) *GatewayHandler {
 	pingInterval := time.Duration(0)
@@ -70,6 +72,7 @@ func NewGatewayHandler(
 		billingCacheService:       billingCacheService,
 		usageService:              usageService,
 		apiKeyService:             apiKeyService,
+		errorPassthroughService:   errorPassthroughService,
 		concurrencyHelper:         NewConcurrencyHelper(concurrencyService, SSEPingFormatClaude, pingInterval),
 		maxAccountSwitches:        maxAccountSwitches,
 		maxAccountSwitchesGemini:  maxAccountSwitchesGemini,
@@ -201,7 +204,7 @@ func (h *GatewayHandler) Messages(c *gin.Context) {
 		maxAccountSwitches := h.maxAccountSwitchesGemini
 		switchCount := 0
 		failedAccountIDs := make(map[int64]struct{})
-		lastFailoverStatus := 0
+		var lastFailoverErr *service.UpstreamFailoverError
 
 		for {
 			selection, err := h.gatewayService.SelectAccountWithLoadAwareness(c.Request.Context(), apiKey.GroupID, sessionKey, reqModel, failedAccountIDs, "") // Gemini 不使用会话限制
@@ -210,7 +213,11 @@ func (h *GatewayHandler) Messages(c *gin.Context) {
 					h.handleStreamingAwareError(c, http.StatusServiceUnavailable, "api_error", "No available accounts: "+err.Error(), streamStarted)
 					return
 				}
-				h.handleFailoverExhausted(c, lastFailoverStatus, streamStarted)
+				if lastFailoverErr != nil {
+					h.handleFailoverExhausted(c, lastFailoverErr, service.PlatformGemini, streamStarted)
+				} else {
+					h.handleFailoverExhaustedSimple(c, 502, streamStarted)
+				}
 				return
 			}
 			account := selection.Account
@@ -301,9 +308,9 @@ func (h *GatewayHandler) Messages(c *gin.Context) {
 				var failoverErr *service.UpstreamFailoverError
 				if errors.As(err, &failoverErr) {
 					failedAccountIDs[account.ID] = struct{}{}
-					lastFailoverStatus = failoverErr.StatusCode
+					lastFailoverErr = failoverErr
 					if switchCount >= maxAccountSwitches {
-						h.handleFailoverExhausted(c, lastFailoverStatus, streamStarted)
+						h.handleFailoverExhausted(c, failoverErr, service.PlatformGemini, streamStarted)
 						return
 					}
 					switchCount++
@@ -352,7 +359,7 @@ func (h *GatewayHandler) Messages(c *gin.Context) {
 		maxAccountSwitches := h.maxAccountSwitches
 		switchCount := 0
 		failedAccountIDs := make(map[int64]struct{})
-		lastFailoverStatus := 0
+		var lastFailoverErr *service.UpstreamFailoverError
 		retryWithFallback := false
 
 		for {
@@ -363,7 +370,11 @@ func (h *GatewayHandler) Messages(c *gin.Context) {
 					h.handleStreamingAwareError(c, http.StatusServiceUnavailable, "api_error", "No available accounts: "+err.Error(), streamStarted)
 					return
 				}
-				h.handleFailoverExhausted(c, lastFailoverStatus, streamStarted)
+				if lastFailoverErr != nil {
+					h.handleFailoverExhausted(c, lastFailoverErr, platform, streamStarted)
+				} else {
+					h.handleFailoverExhaustedSimple(c, 502, streamStarted)
+				}
 				return
 			}
 			account := selection.Account
@@ -487,9 +498,9 @@ func (h *GatewayHandler) Messages(c *gin.Context) {
 				var failoverErr *service.UpstreamFailoverError
 				if errors.As(err, &failoverErr) {
 					failedAccountIDs[account.ID] = struct{}{}
-					lastFailoverStatus = failoverErr.StatusCode
+					lastFailoverErr = failoverErr
 					if switchCount >= maxAccountSwitches {
-						h.handleFailoverExhausted(c, lastFailoverStatus, streamStarted)
+						h.handleFailoverExhausted(c, failoverErr, account.Platform, streamStarted)
 						return
 					}
 					switchCount++
@@ -755,7 +766,37 @@ func (h *GatewayHandler) handleConcurrencyError(c *gin.Context, err error, slotT
 		fmt.Sprintf("Concurrency limit exceeded for %s, please retry later", slotType), streamStarted)
 }
 
-func (h *GatewayHandler) handleFailoverExhausted(c *gin.Context, statusCode int, streamStarted bool) {
+func (h *GatewayHandler) handleFailoverExhausted(c *gin.Context, failoverErr *service.UpstreamFailoverError, platform string, streamStarted bool) {
+	statusCode := failoverErr.StatusCode
+	responseBody := failoverErr.ResponseBody
+
+	// 先检查透传规则
+	if h.errorPassthroughService != nil && len(responseBody) > 0 {
+		if rule := h.errorPassthroughService.MatchRule(platform, statusCode, responseBody); rule != nil {
+			// 确定响应状态码
+			respCode := statusCode
+			if !rule.PassthroughCode && rule.ResponseCode != nil {
+				respCode = *rule.ResponseCode
+			}
+
+			// 确定响应消息
+			msg := service.ExtractUpstreamErrorMessage(responseBody)
+			if !rule.PassthroughBody && rule.CustomMessage != nil {
+				msg = *rule.CustomMessage
+			}
+
+			h.handleStreamingAwareError(c, respCode, "upstream_error", msg, streamStarted)
+			return
+		}
+	}
+
+	// 使用默认的错误映射
+	status, errType, errMsg := h.mapUpstreamError(statusCode)
+	h.handleStreamingAwareError(c, status, errType, errMsg, streamStarted)
+}
+
+// handleFailoverExhaustedSimple 简化版本，用于没有响应体的情况
+func (h *GatewayHandler) handleFailoverExhaustedSimple(c *gin.Context, statusCode int, streamStarted bool) {
 	status, errType, errMsg := h.mapUpstreamError(statusCode)
 	h.handleStreamingAwareError(c, status, errType, errMsg, streamStarted)
 }

backend/internal/handler/gemini_v1beta_handler.go

@@ -253,7 +253,7 @@ func (h *GatewayHandler) GeminiV1BetaModels(c *gin.Context) {
 	maxAccountSwitches := h.maxAccountSwitchesGemini
 	switchCount := 0
 	failedAccountIDs := make(map[int64]struct{})
-	lastFailoverStatus := 0
+	var lastFailoverErr *service.UpstreamFailoverError
 
 	for {
 		selection, err := h.gatewayService.SelectAccountWithLoadAwareness(c.Request.Context(), apiKey.GroupID, sessionKey, modelName, failedAccountIDs, "") // Gemini 不使用会话限制
@@ -262,7 +262,7 @@ func (h *GatewayHandler) GeminiV1BetaModels(c *gin.Context) {
 				googleError(c, http.StatusServiceUnavailable, "No available Gemini accounts: "+err.Error())
 				return
 			}
-			handleGeminiFailoverExhausted(c, lastFailoverStatus)
+			h.handleGeminiFailoverExhausted(c, lastFailoverErr)
 			return
 		}
 		account := selection.Account
@@ -353,11 +353,11 @@ func (h *GatewayHandler) GeminiV1BetaModels(c *gin.Context) {
 			if errors.As(err, &failoverErr) {
 				failedAccountIDs[account.ID] = struct{}{}
 				if switchCount >= maxAccountSwitches {
-					lastFailoverStatus = failoverErr.StatusCode
-					handleGeminiFailoverExhausted(c, lastFailoverStatus)
+					lastFailoverErr = failoverErr
+					h.handleGeminiFailoverExhausted(c, lastFailoverErr)
 					return
 				}
-				lastFailoverStatus = failoverErr.StatusCode
+				lastFailoverErr = failoverErr
 				switchCount++
 				log.Printf("Gemini account %d: upstream error %d, switching account %d/%d", account.ID, failoverErr.StatusCode, switchCount, maxAccountSwitches)
 				continue
@@ -414,7 +414,36 @@ func parseGeminiModelAction(rest string) (model string, action string, err error
 	return "", "", &pathParseError{"invalid model action path"}
 }
 
-func handleGeminiFailoverExhausted(c *gin.Context, statusCode int) {
+func (h *GatewayHandler) handleGeminiFailoverExhausted(c *gin.Context, failoverErr *service.UpstreamFailoverError) {
+	if failoverErr == nil {
+		googleError(c, http.StatusBadGateway, "Upstream request failed")
+		return
+	}
+
+	statusCode := failoverErr.StatusCode
+	responseBody := failoverErr.ResponseBody
+
+	// 先检查透传规则
+	if h.errorPassthroughService != nil && len(responseBody) > 0 {
+		if rule := h.errorPassthroughService.MatchRule(service.PlatformGemini, statusCode, responseBody); rule != nil {
+			// 确定响应状态码
+			respCode := statusCode
+			if !rule.PassthroughCode && rule.ResponseCode != nil {
+				respCode = *rule.ResponseCode
+			}
+
+			// 确定响应消息
+			msg := service.ExtractUpstreamErrorMessage(responseBody)
+			if !rule.PassthroughBody && rule.CustomMessage != nil {
+				msg = *rule.CustomMessage
+			}
+
+			googleError(c, respCode, msg)
+			return
+		}
+	}
+
+	// 使用默认的错误映射
 	status, message := mapGeminiUpstreamError(statusCode)
 	googleError(c, status, message)
 }

backend/internal/handler/handler.go

@@ -24,6 +24,7 @@ type AdminHandlers struct {
 	Subscription     *admin.SubscriptionHandler
 	Usage            *admin.UsageHandler
 	UserAttribute    *admin.UserAttributeHandler
+	ErrorPassthrough *admin.ErrorPassthroughHandler
 }
 
 // Handlers contains all HTTP handlers

backend/internal/handler/openai_gateway_handler.go

@@ -22,11 +22,12 @@ import (
 
 // OpenAIGatewayHandler handles OpenAI API gateway requests
 type OpenAIGatewayHandler struct {
-	gatewayService      *service.OpenAIGatewayService
-	billingCacheService *service.BillingCacheService
-	apiKeyService       *service.APIKeyService
-	concurrencyHelper   *ConcurrencyHelper
-	maxAccountSwitches  int
+	gatewayService          *service.OpenAIGatewayService
+	billingCacheService     *service.BillingCacheService
+	apiKeyService           *service.APIKeyService
+	errorPassthroughService *service.ErrorPassthroughService
+	concurrencyHelper       *ConcurrencyHelper
+	maxAccountSwitches      int
 }
 
 // NewOpenAIGatewayHandler creates a new OpenAIGatewayHandler
@@ -35,6 +36,7 @@ func NewOpenAIGatewayHandler(
 	concurrencyService *service.ConcurrencyService,
 	billingCacheService *service.BillingCacheService,
 	apiKeyService *service.APIKeyService,
+	errorPassthroughService *service.ErrorPassthroughService,
 	cfg *config.Config,
 ) *OpenAIGatewayHandler {
 	pingInterval := time.Duration(0)
@@ -46,11 +48,12 @@ func NewOpenAIGatewayHandler(
 		}
 	}
 	return &OpenAIGatewayHandler{
-		gatewayService:      gatewayService,
-		billingCacheService: billingCacheService,
-		apiKeyService:       apiKeyService,
-		concurrencyHelper:   NewConcurrencyHelper(concurrencyService, SSEPingFormatComment, pingInterval),
-		maxAccountSwitches:  maxAccountSwitches,
+		gatewayService:          gatewayService,
+		billingCacheService:     billingCacheService,
+		apiKeyService:           apiKeyService,
+		errorPassthroughService: errorPassthroughService,
+		concurrencyHelper:       NewConcurrencyHelper(concurrencyService, SSEPingFormatComment, pingInterval),
+		maxAccountSwitches:      maxAccountSwitches,
 	}
 }
 
@@ -201,7 +204,7 @@ func (h *OpenAIGatewayHandler) Responses(c *gin.Context) {
 	maxAccountSwitches := h.maxAccountSwitches
 	switchCount := 0
 	failedAccountIDs := make(map[int64]struct{})
-	lastFailoverStatus := 0
+	var lastFailoverErr *service.UpstreamFailoverError
 
 	for {
 		// Select account supporting the requested model
@@ -213,7 +216,11 @@ func (h *OpenAIGatewayHandler) Responses(c *gin.Context) {
 				h.handleStreamingAwareError(c, http.StatusServiceUnavailable, "api_error", "No available accounts: "+err.Error(), streamStarted)
 				return
 			}
-			h.handleFailoverExhausted(c, lastFailoverStatus, streamStarted)
+			if lastFailoverErr != nil {
+				h.handleFailoverExhausted(c, lastFailoverErr, streamStarted)
+			} else {
+				h.handleFailoverExhaustedSimple(c, 502, streamStarted)
+			}
 			return
 		}
 		account := selection.Account
@@ -278,12 +285,11 @@ func (h *OpenAIGatewayHandler) Responses(c *gin.Context) {
 			var failoverErr *service.UpstreamFailoverError
 			if errors.As(err, &failoverErr) {
 				failedAccountIDs[account.ID] = struct{}{}
+				lastFailoverErr = failoverErr
 				if switchCount >= maxAccountSwitches {
-					lastFailoverStatus = failoverErr.StatusCode
-					h.handleFailoverExhausted(c, lastFailoverStatus, streamStarted)
+					h.handleFailoverExhausted(c, failoverErr, streamStarted)
 					return
 				}
-				lastFailoverStatus = failoverErr.StatusCode
 				switchCount++
 				log.Printf("Account %d: upstream error %d, switching account %d/%d", account.ID, failoverErr.StatusCode, switchCount, maxAccountSwitches)
 				continue
@@ -324,7 +330,37 @@ func (h *OpenAIGatewayHandler) handleConcurrencyError(c *gin.Context, err error,
 		fmt.Sprintf("Concurrency limit exceeded for %s, please retry later", slotType), streamStarted)
 }
 
-func (h *OpenAIGatewayHandler) handleFailoverExhausted(c *gin.Context, statusCode int, streamStarted bool) {
+func (h *OpenAIGatewayHandler) handleFailoverExhausted(c *gin.Context, failoverErr *service.UpstreamFailoverError, streamStarted bool) {
+	statusCode := failoverErr.StatusCode
+	responseBody := failoverErr.ResponseBody
+
+	// 先检查透传规则
+	if h.errorPassthroughService != nil && len(responseBody) > 0 {
+		if rule := h.errorPassthroughService.MatchRule("openai", statusCode, responseBody); rule != nil {
+			// 确定响应状态码
+			respCode := statusCode
+			if !rule.PassthroughCode && rule.ResponseCode != nil {
+				respCode = *rule.ResponseCode
+			}
+
+			// 确定响应消息
+			msg := service.ExtractUpstreamErrorMessage(responseBody)
+			if !rule.PassthroughBody && rule.CustomMessage != nil {
+				msg = *rule.CustomMessage
+			}
+
+			h.handleStreamingAwareError(c, respCode, "upstream_error", msg, streamStarted)
+			return
+		}
+	}
+
+	// 使用默认的错误映射
+	status, errType, errMsg := h.mapUpstreamError(statusCode)
+	h.handleStreamingAwareError(c, status, errType, errMsg, streamStarted)
+}
+
+// handleFailoverExhaustedSimple 简化版本，用于没有响应体的情况
+func (h *OpenAIGatewayHandler) handleFailoverExhaustedSimple(c *gin.Context, statusCode int, streamStarted bool) {
 	status, errType, errMsg := h.mapUpstreamError(statusCode)
 	h.handleStreamingAwareError(c, status, errType, errMsg, streamStarted)
 }

backend/internal/handler/wire.go

@@ -27,6 +27,7 @@ func ProvideAdminHandlers(
 	subscriptionHandler *admin.SubscriptionHandler,
 	usageHandler *admin.UsageHandler,
 	userAttributeHandler *admin.UserAttributeHandler,
+	errorPassthroughHandler *admin.ErrorPassthroughHandler,
 ) *AdminHandlers {
 	return &AdminHandlers{
 		Dashboard:        dashboardHandler,
@@ -47,6 +48,7 @@ func ProvideAdminHandlers(
 		Subscription:     subscriptionHandler,
 		Usage:            usageHandler,
 		UserAttribute:    userAttributeHandler,
+		ErrorPassthrough: errorPassthroughHandler,
 	}
 }
 
@@ -125,6 +127,7 @@ var ProviderSet = wire.NewSet(
 	admin.NewSubscriptionHandler,
 	admin.NewUsageHandler,
 	admin.NewUserAttributeHandler,
+	admin.NewErrorPassthroughHandler,
 
 	// AdminHandlers and Handlers constructors
 	ProvideAdminHandlers,

backend/internal/model/error_passthrough_rule.go

@@ -0,0 +1,74 @@
+// Package model 定义服务层使用的数据模型。
+package model
+
+import "time"
+
+// ErrorPassthroughRule 全局错误透传规则
+// 用于控制上游错误如何返回给客户端
+type ErrorPassthroughRule struct {
+	ID              int64     `json:"id"`
+	Name            string    `json:"name"`             // 规则名称
+	Enabled         bool      `json:"enabled"`          // 是否启用
+	Priority        int       `json:"priority"`         // 优先级（数字越小优先级越高）
+	ErrorCodes      []int     `json:"error_codes"`      // 匹配的错误码列表（OR关系）
+	Keywords        []string  `json:"keywords"`         // 匹配的关键词列表（OR关系）
+	MatchMode       string    `json:"match_mode"`       // "any"(任一条件) 或 "all"(所有条件)
+	Platforms       []string  `json:"platforms"`        // 适用平台列表
+	PassthroughCode bool      `json:"passthrough_code"` // 是否透传原始状态码
+	ResponseCode    *int      `json:"response_code"`    // 自定义状态码（passthrough_code=false 时使用）
+	PassthroughBody bool      `json:"passthrough_body"` // 是否透传原始错误信息
+	CustomMessage   *string   `json:"custom_message"`   // 自定义错误信息（passthrough_body=false 时使用）
+	Description     *string   `json:"description"`      // 规则描述
+	CreatedAt       time.Time `json:"created_at"`
+	UpdatedAt       time.Time `json:"updated_at"`
+}
+
+// MatchModeAny 表示任一条件匹配即可
+const MatchModeAny = "any"
+
+// MatchModeAll 表示所有条件都必须匹配
+const MatchModeAll = "all"
+
+// 支持的平台常量
+const (
+	PlatformAnthropic   = "anthropic"
+	PlatformOpenAI      = "openai"
+	PlatformGemini      = "gemini"
+	PlatformAntigravity = "antigravity"
+)
+
+// AllPlatforms 返回所有支持的平台列表
+func AllPlatforms() []string {
+	return []string{PlatformAnthropic, PlatformOpenAI, PlatformGemini, PlatformAntigravity}
+}
+
+// Validate 验证规则配置的有效性
+func (r *ErrorPassthroughRule) Validate() error {
+	if r.Name == "" {
+		return &ValidationError{Field: "name", Message: "name is required"}
+	}
+	if r.MatchMode != MatchModeAny && r.MatchMode != MatchModeAll {
+		return &ValidationError{Field: "match_mode", Message: "match_mode must be 'any' or 'all'"}
+	}
+	// 至少需要配置一个匹配条件（错误码或关键词）
+	if len(r.ErrorCodes) == 0 && len(r.Keywords) == 0 {
+		return &ValidationError{Field: "conditions", Message: "at least one error_code or keyword is required"}
+	}
+	if !r.PassthroughCode && (r.ResponseCode == nil || *r.ResponseCode <= 0) {
+		return &ValidationError{Field: "response_code", Message: "response_code is required when passthrough_code is false"}
+	}
+	if !r.PassthroughBody && (r.CustomMessage == nil || *r.CustomMessage == "") {
+		return &ValidationError{Field: "custom_message", Message: "custom_message is required when passthrough_body is false"}
+	}
+	return nil
+}
+
+// ValidationError 表示验证错误
+type ValidationError struct {
+	Field   string
+	Message string
+}
+
+func (e *ValidationError) Error() string {
+	return e.Field + ": " + e.Message
+}

backend/internal/repository/error_passthrough_cache.go

@@ -0,0 +1,128 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"log"
+	"sync"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/model"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+const (
+	errorPassthroughCacheKey  = "error_passthrough_rules"
+	errorPassthroughPubSubKey = "error_passthrough_rules_updated"
+	errorPassthroughCacheTTL  = 24 * time.Hour
+)
+
+type errorPassthroughCache struct {
+	rdb        *redis.Client
+	localCache []*model.ErrorPassthroughRule
+	localMu    sync.RWMutex
+}
+
+// NewErrorPassthroughCache 创建错误透传规则缓存
+func NewErrorPassthroughCache(rdb *redis.Client) service.ErrorPassthroughCache {
+	return &errorPassthroughCache{
+		rdb: rdb,
+	}
+}
+
+// Get 从缓存获取规则列表
+func (c *errorPassthroughCache) Get(ctx context.Context) ([]*model.ErrorPassthroughRule, bool) {
+	// 先检查本地缓存
+	c.localMu.RLock()
+	if c.localCache != nil {
+		rules := c.localCache
+		c.localMu.RUnlock()
+		return rules, true
+	}
+	c.localMu.RUnlock()
+
+	// 从 Redis 获取
+	data, err := c.rdb.Get(ctx, errorPassthroughCacheKey).Bytes()
+	if err != nil {
+		if err != redis.Nil {
+			log.Printf("[ErrorPassthroughCache] Failed to get from Redis: %v", err)
+		}
+		return nil, false
+	}
+
+	var rules []*model.ErrorPassthroughRule
+	if err := json.Unmarshal(data, &rules); err != nil {
+		log.Printf("[ErrorPassthroughCache] Failed to unmarshal rules: %v", err)
+		return nil, false
+	}
+
+	// 更新本地缓存
+	c.localMu.Lock()
+	c.localCache = rules
+	c.localMu.Unlock()
+
+	return rules, true
+}
+
+// Set 设置缓存
+func (c *errorPassthroughCache) Set(ctx context.Context, rules []*model.ErrorPassthroughRule) error {
+	data, err := json.Marshal(rules)
+	if err != nil {
+		return err
+	}
+
+	if err := c.rdb.Set(ctx, errorPassthroughCacheKey, data, errorPassthroughCacheTTL).Err(); err != nil {
+		return err
+	}
+
+	// 更新本地缓存
+	c.localMu.Lock()
+	c.localCache = rules
+	c.localMu.Unlock()
+
+	return nil
+}
+
+// Invalidate 使缓存失效
+func (c *errorPassthroughCache) Invalidate(ctx context.Context) error {
+	// 清除本地缓存
+	c.localMu.Lock()
+	c.localCache = nil
+	c.localMu.Unlock()
+
+	// 清除 Redis 缓存
+	return c.rdb.Del(ctx, errorPassthroughCacheKey).Err()
+}
+
+// NotifyUpdate 通知其他实例刷新缓存
+func (c *errorPassthroughCache) NotifyUpdate(ctx context.Context) error {
+	return c.rdb.Publish(ctx, errorPassthroughPubSubKey, "refresh").Err()
+}
+
+// SubscribeUpdates 订阅缓存更新通知
+func (c *errorPassthroughCache) SubscribeUpdates(ctx context.Context, handler func()) {
+	go func() {
+		sub := c.rdb.Subscribe(ctx, errorPassthroughPubSubKey)
+		defer func() { _ = sub.Close() }()
+
+		ch := sub.Channel()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case msg := <-ch:
+				if msg == nil {
+					return
+				}
+				// 清除本地缓存，下次访问时会从 Redis 或数据库重新加载
+				c.localMu.Lock()
+				c.localCache = nil
+				c.localMu.Unlock()
+
+				// 调用处理函数
+				handler()
+			}
+		}
+	}()
+}

backend/internal/repository/error_passthrough_repo.go

@@ -0,0 +1,178 @@
+package repository
+
+import (
+	"context"
+
+	"github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/errorpassthroughrule"
+	"github.com/Wei-Shaw/sub2api/internal/model"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+type errorPassthroughRepository struct {
+	client *ent.Client
+}
+
+// NewErrorPassthroughRepository 创建错误透传规则仓库
+func NewErrorPassthroughRepository(client *ent.Client) service.ErrorPassthroughRepository {
+	return &errorPassthroughRepository{client: client}
+}
+
+// List 获取所有规则
+func (r *errorPassthroughRepository) List(ctx context.Context) ([]*model.ErrorPassthroughRule, error) {
+	rules, err := r.client.ErrorPassthroughRule.Query().
+		Order(ent.Asc(errorpassthroughrule.FieldPriority)).
+		All(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	result := make([]*model.ErrorPassthroughRule, len(rules))
+	for i, rule := range rules {
+		result[i] = r.toModel(rule)
+	}
+	return result, nil
+}
+
+// GetByID 根据 ID 获取规则
+func (r *errorPassthroughRepository) GetByID(ctx context.Context, id int64) (*model.ErrorPassthroughRule, error) {
+	rule, err := r.client.ErrorPassthroughRule.Get(ctx, id)
+	if err != nil {
+		if ent.IsNotFound(err) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return r.toModel(rule), nil
+}
+
+// Create 创建规则
+func (r *errorPassthroughRepository) Create(ctx context.Context, rule *model.ErrorPassthroughRule) (*model.ErrorPassthroughRule, error) {
+	builder := r.client.ErrorPassthroughRule.Create().
+		SetName(rule.Name).
+		SetEnabled(rule.Enabled).
+		SetPriority(rule.Priority).
+		SetMatchMode(rule.MatchMode).
+		SetPassthroughCode(rule.PassthroughCode).
+		SetPassthroughBody(rule.PassthroughBody)
+
+	if len(rule.ErrorCodes) > 0 {
+		builder.SetErrorCodes(rule.ErrorCodes)
+	}
+	if len(rule.Keywords) > 0 {
+		builder.SetKeywords(rule.Keywords)
+	}
+	if len(rule.Platforms) > 0 {
+		builder.SetPlatforms(rule.Platforms)
+	}
+	if rule.ResponseCode != nil {
+		builder.SetResponseCode(*rule.ResponseCode)
+	}
+	if rule.CustomMessage != nil {
+		builder.SetCustomMessage(*rule.CustomMessage)
+	}
+	if rule.Description != nil {
+		builder.SetDescription(*rule.Description)
+	}
+
+	created, err := builder.Save(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return r.toModel(created), nil
+}
+
+// Update 更新规则
+func (r *errorPassthroughRepository) Update(ctx context.Context, rule *model.ErrorPassthroughRule) (*model.ErrorPassthroughRule, error) {
+	builder := r.client.ErrorPassthroughRule.UpdateOneID(rule.ID).
+		SetName(rule.Name).
+		SetEnabled(rule.Enabled).
+		SetPriority(rule.Priority).
+		SetMatchMode(rule.MatchMode).
+		SetPassthroughCode(rule.PassthroughCode).
+		SetPassthroughBody(rule.PassthroughBody)
+
+	// 处理可选字段
+	if len(rule.ErrorCodes) > 0 {
+		builder.SetErrorCodes(rule.ErrorCodes)
+	} else {
+		builder.ClearErrorCodes()
+	}
+	if len(rule.Keywords) > 0 {
+		builder.SetKeywords(rule.Keywords)
+	} else {
+		builder.ClearKeywords()
+	}
+	if len(rule.Platforms) > 0 {
+		builder.SetPlatforms(rule.Platforms)
+	} else {
+		builder.ClearPlatforms()
+	}
+	if rule.ResponseCode != nil {
+		builder.SetResponseCode(*rule.ResponseCode)
+	} else {
+		builder.ClearResponseCode()
+	}
+	if rule.CustomMessage != nil {
+		builder.SetCustomMessage(*rule.CustomMessage)
+	} else {
+		builder.ClearCustomMessage()
+	}
+	if rule.Description != nil {
+		builder.SetDescription(*rule.Description)
+	} else {
+		builder.ClearDescription()
+	}
+
+	updated, err := builder.Save(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return r.toModel(updated), nil
+}
+
+// Delete 删除规则
+func (r *errorPassthroughRepository) Delete(ctx context.Context, id int64) error {
+	return r.client.ErrorPassthroughRule.DeleteOneID(id).Exec(ctx)
+}
+
+// toModel 将 Ent 实体转换为服务模型
+func (r *errorPassthroughRepository) toModel(e *ent.ErrorPassthroughRule) *model.ErrorPassthroughRule {
+	rule := &model.ErrorPassthroughRule{
+		ID:              int64(e.ID),
+		Name:            e.Name,
+		Enabled:         e.Enabled,
+		Priority:        e.Priority,
+		ErrorCodes:      e.ErrorCodes,
+		Keywords:        e.Keywords,
+		MatchMode:       e.MatchMode,
+		Platforms:       e.Platforms,
+		PassthroughCode: e.PassthroughCode,
+		PassthroughBody: e.PassthroughBody,
+		CreatedAt:       e.CreatedAt,
+		UpdatedAt:       e.UpdatedAt,
+	}
+
+	if e.ResponseCode != nil {
+		rule.ResponseCode = e.ResponseCode
+	}
+	if e.CustomMessage != nil {
+		rule.CustomMessage = e.CustomMessage
+	}
+	if e.Description != nil {
+		rule.Description = e.Description
+	}
+
+	// 确保切片不为 nil
+	if rule.ErrorCodes == nil {
+		rule.ErrorCodes = []int{}
+	}
+	if rule.Keywords == nil {
+		rule.Keywords = []string{}
+	}
+	if rule.Platforms == nil {
+		rule.Platforms = []string{}
+	}
+
+	return rule
+}

backend/internal/repository/wire.go

@@ -67,6 +67,7 @@ var ProviderSet = wire.NewSet(
 	NewUserAttributeDefinitionRepository,
 	NewUserAttributeValueRepository,
 	NewUserGroupRateRepository,
+	NewErrorPassthroughRepository,
 
 	// Cache implementations
 	NewGatewayCache,
@@ -87,6 +88,7 @@ var ProviderSet = wire.NewSet(
 	NewProxyLatencyCache,
 	NewTotpCache,
 	NewRefreshTokenCache,
+	NewErrorPassthroughCache,
 
 	// Encryptors
 	NewAESEncryptor,

backend/internal/server/routes/admin.go

@@ -67,6 +67,9 @@ func RegisterAdminRoutes(
 
 		// 用户属性管理
 		registerUserAttributeRoutes(admin, h)
+
+		// 错误透传规则管理
+		registerErrorPassthroughRoutes(admin, h)
 	}
 }
 
@@ -387,3 +390,14 @@ func registerUserAttributeRoutes(admin *gin.RouterGroup, h *handler.Handlers) {
 		attrs.DELETE("/:id", h.Admin.UserAttribute.DeleteDefinition)
 	}
 }
+
+func registerErrorPassthroughRoutes(admin *gin.RouterGroup, h *handler.Handlers) {
+	rules := admin.Group("/error-passthrough-rules")
+	{
+		rules.GET("", h.Admin.ErrorPassthrough.List)
+		rules.GET("/:id", h.Admin.ErrorPassthrough.GetByID)
+		rules.POST("", h.Admin.ErrorPassthrough.Create)
+		rules.PUT("/:id", h.Admin.ErrorPassthrough.Update)
+		rules.DELETE("/:id", h.Admin.ErrorPassthrough.Delete)
+	}
+}

backend/internal/service/antigravity_gateway_service.go

@@ -1106,7 +1106,7 @@ func (s *AntigravityGatewayService) Forward(ctx context.Context, c *gin.Context,
 					Message:            upstreamMsg,
 					Detail:             upstreamDetail,
 				})
-				return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+				return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: respBody}
 			}
 
 			return nil, s.writeMappedClaudeError(c, account, resp.StatusCode, resp.Header.Get("x-request-id"), respBody)
@@ -1779,6 +1779,7 @@ func (s *AntigravityGatewayService) ForwardGemini(ctx context.Context, c *gin.Co
 	// 处理错误响应
 	if resp.StatusCode >= 400 {
 		respBody, _ := io.ReadAll(io.LimitReader(resp.Body, 2<<20))
+		contentType := resp.Header.Get("Content-Type")
 		// 尽早关闭原始响应体，释放连接；后续逻辑仍可能需要读取 body，因此用内存副本重新包装。
 		_ = resp.Body.Close()
 		resp.Body = io.NopCloser(bytes.NewReader(respBody))
@@ -1849,10 +1850,8 @@ func (s *AntigravityGatewayService) ForwardGemini(ctx context.Context, c *gin.Co
 				Message:            upstreamMsg,
 				Detail:             upstreamDetail,
 			})
-			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: unwrappedForOps}
 		}
-
-		contentType := resp.Header.Get("Content-Type")
 		if contentType == "" {
 			contentType = "application/json"
 		}

backend/internal/service/error_passthrough_service.go

@@ -0,0 +1,300 @@
+package service
+
+import (
+	"context"
+	"log"
+	"sort"
+	"strings"
+	"sync"
+
+	"github.com/Wei-Shaw/sub2api/internal/model"
+)
+
+// ErrorPassthroughRepository 定义错误透传规则的数据访问接口
+type ErrorPassthroughRepository interface {
+	// List 获取所有规则
+	List(ctx context.Context) ([]*model.ErrorPassthroughRule, error)
+	// GetByID 根据 ID 获取规则
+	GetByID(ctx context.Context, id int64) (*model.ErrorPassthroughRule, error)
+	// Create 创建规则
+	Create(ctx context.Context, rule *model.ErrorPassthroughRule) (*model.ErrorPassthroughRule, error)
+	// Update 更新规则
+	Update(ctx context.Context, rule *model.ErrorPassthroughRule) (*model.ErrorPassthroughRule, error)
+	// Delete 删除规则
+	Delete(ctx context.Context, id int64) error
+}
+
+// ErrorPassthroughCache 定义错误透传规则的缓存接口
+type ErrorPassthroughCache interface {
+	// Get 从缓存获取规则列表
+	Get(ctx context.Context) ([]*model.ErrorPassthroughRule, bool)
+	// Set 设置缓存
+	Set(ctx context.Context, rules []*model.ErrorPassthroughRule) error
+	// Invalidate 使缓存失效
+	Invalidate(ctx context.Context) error
+	// NotifyUpdate 通知其他实例刷新缓存
+	NotifyUpdate(ctx context.Context) error
+	// SubscribeUpdates 订阅缓存更新通知
+	SubscribeUpdates(ctx context.Context, handler func())
+}
+
+// ErrorPassthroughService 错误透传规则服务
+type ErrorPassthroughService struct {
+	repo  ErrorPassthroughRepository
+	cache ErrorPassthroughCache
+
+	// 本地内存缓存，用于快速匹配
+	localCache   []*model.ErrorPassthroughRule
+	localCacheMu sync.RWMutex
+}
+
+// NewErrorPassthroughService 创建错误透传规则服务
+func NewErrorPassthroughService(
+	repo ErrorPassthroughRepository,
+	cache ErrorPassthroughCache,
+) *ErrorPassthroughService {
+	svc := &ErrorPassthroughService{
+		repo:  repo,
+		cache: cache,
+	}
+
+	// 启动时加载规则到本地缓存
+	ctx := context.Background()
+	if err := svc.refreshLocalCache(ctx); err != nil {
+		log.Printf("[ErrorPassthroughService] Failed to load rules on startup: %v", err)
+	}
+
+	// 订阅缓存更新通知
+	if cache != nil {
+		cache.SubscribeUpdates(ctx, func() {
+			if err := svc.refreshLocalCache(context.Background()); err != nil {
+				log.Printf("[ErrorPassthroughService] Failed to refresh cache on notification: %v", err)
+			}
+		})
+	}
+
+	return svc
+}
+
+// List 获取所有规则
+func (s *ErrorPassthroughService) List(ctx context.Context) ([]*model.ErrorPassthroughRule, error) {
+	return s.repo.List(ctx)
+}
+
+// GetByID 根据 ID 获取规则
+func (s *ErrorPassthroughService) GetByID(ctx context.Context, id int64) (*model.ErrorPassthroughRule, error) {
+	return s.repo.GetByID(ctx, id)
+}
+
+// Create 创建规则
+func (s *ErrorPassthroughService) Create(ctx context.Context, rule *model.ErrorPassthroughRule) (*model.ErrorPassthroughRule, error) {
+	if err := rule.Validate(); err != nil {
+		return nil, err
+	}
+
+	created, err := s.repo.Create(ctx, rule)
+	if err != nil {
+		return nil, err
+	}
+
+	// 刷新缓存
+	s.invalidateAndNotify(ctx)
+
+	return created, nil
+}
+
+// Update 更新规则
+func (s *ErrorPassthroughService) Update(ctx context.Context, rule *model.ErrorPassthroughRule) (*model.ErrorPassthroughRule, error) {
+	if err := rule.Validate(); err != nil {
+		return nil, err
+	}
+
+	updated, err := s.repo.Update(ctx, rule)
+	if err != nil {
+		return nil, err
+	}
+
+	// 刷新缓存
+	s.invalidateAndNotify(ctx)
+
+	return updated, nil
+}
+
+// Delete 删除规则
+func (s *ErrorPassthroughService) Delete(ctx context.Context, id int64) error {
+	if err := s.repo.Delete(ctx, id); err != nil {
+		return err
+	}
+
+	// 刷新缓存
+	s.invalidateAndNotify(ctx)
+
+	return nil
+}
+
+// MatchRule 匹配透传规则
+// 返回第一个匹配的规则，如果没有匹配则返回 nil
+func (s *ErrorPassthroughService) MatchRule(platform string, statusCode int, body []byte) *model.ErrorPassthroughRule {
+	rules := s.getCachedRules()
+	if len(rules) == 0 {
+		return nil
+	}
+
+	bodyStr := strings.ToLower(string(body))
+
+	for _, rule := range rules {
+		if !rule.Enabled {
+			continue
+		}
+		if !s.platformMatches(rule, platform) {
+			continue
+		}
+		if s.ruleMatches(rule, statusCode, bodyStr) {
+			return rule
+		}
+	}
+
+	return nil
+}
+
+// getCachedRules 获取缓存的规则列表（按优先级排序）
+func (s *ErrorPassthroughService) getCachedRules() []*model.ErrorPassthroughRule {
+	s.localCacheMu.RLock()
+	rules := s.localCache
+	s.localCacheMu.RUnlock()
+
+	if rules != nil {
+		return rules
+	}
+
+	// 如果本地缓存为空，尝试刷新
+	ctx := context.Background()
+	if err := s.refreshLocalCache(ctx); err != nil {
+		log.Printf("[ErrorPassthroughService] Failed to refresh cache: %v", err)
+		return nil
+	}
+
+	s.localCacheMu.RLock()
+	defer s.localCacheMu.RUnlock()
+	return s.localCache
+}
+
+// refreshLocalCache 刷新本地缓存
+func (s *ErrorPassthroughService) refreshLocalCache(ctx context.Context) error {
+	// 先尝试从 Redis 缓存获取
+	if s.cache != nil {
+		if rules, ok := s.cache.Get(ctx); ok {
+			s.setLocalCache(rules)
+			return nil
+		}
+	}
+
+	// 从数据库加载（repo.List 已按 priority 排序）
+	rules, err := s.repo.List(ctx)
+	if err != nil {
+		return err
+	}
+
+	// 更新 Redis 缓存
+	if s.cache != nil {
+		if err := s.cache.Set(ctx, rules); err != nil {
+			log.Printf("[ErrorPassthroughService] Failed to set cache: %v", err)
+		}
+	}
+
+	// 更新本地缓存（setLocalCache 内部会确保排序）
+	s.setLocalCache(rules)
+
+	return nil
+}
+
+// setLocalCache 设置本地缓存
+func (s *ErrorPassthroughService) setLocalCache(rules []*model.ErrorPassthroughRule) {
+	// 按优先级排序
+	sorted := make([]*model.ErrorPassthroughRule, len(rules))
+	copy(sorted, rules)
+	sort.Slice(sorted, func(i, j int) bool {
+		return sorted[i].Priority < sorted[j].Priority
+	})
+
+	s.localCacheMu.Lock()
+	s.localCache = sorted
+	s.localCacheMu.Unlock()
+}
+
+// invalidateAndNotify 使缓存失效并通知其他实例
+func (s *ErrorPassthroughService) invalidateAndNotify(ctx context.Context) {
+	// 刷新本地缓存
+	if err := s.refreshLocalCache(ctx); err != nil {
+		log.Printf("[ErrorPassthroughService] Failed to refresh local cache: %v", err)
+	}
+
+	// 通知其他实例
+	if s.cache != nil {
+		if err := s.cache.NotifyUpdate(ctx); err != nil {
+			log.Printf("[ErrorPassthroughService] Failed to notify cache update: %v", err)
+		}
+	}
+}
+
+// platformMatches 检查平台是否匹配
+func (s *ErrorPassthroughService) platformMatches(rule *model.ErrorPassthroughRule, platform string) bool {
+	// 如果没有配置平台限制，则匹配所有平台
+	if len(rule.Platforms) == 0 {
+		return true
+	}
+
+	platform = strings.ToLower(platform)
+	for _, p := range rule.Platforms {
+		if strings.ToLower(p) == platform {
+			return true
+		}
+	}
+
+	return false
+}
+
+// ruleMatches 检查规则是否匹配
+func (s *ErrorPassthroughService) ruleMatches(rule *model.ErrorPassthroughRule, statusCode int, bodyLower string) bool {
+	hasErrorCodes := len(rule.ErrorCodes) > 0
+	hasKeywords := len(rule.Keywords) > 0
+
+	// 如果没有配置任何条件，不匹配
+	if !hasErrorCodes && !hasKeywords {
+		return false
+	}
+
+	codeMatch := !hasErrorCodes || s.containsInt(rule.ErrorCodes, statusCode)
+	keywordMatch := !hasKeywords || s.containsAnyKeyword(bodyLower, rule.Keywords)
+
+	if rule.MatchMode == model.MatchModeAll {
+		// "all" 模式：所有配置的条件都必须满足
+		return codeMatch && keywordMatch
+	}
+
+	// "any" 模式：任一条件满足即可
+	if hasErrorCodes && hasKeywords {
+		return codeMatch || keywordMatch
+	}
+	return codeMatch && keywordMatch
+}
+
+// containsInt 检查切片是否包含指定整数
+func (s *ErrorPassthroughService) containsInt(slice []int, val int) bool {
+	for _, v := range slice {
+		if v == val {
+			return true
+		}
+	}
+	return false
+}
+
+// containsAnyKeyword 检查字符串是否包含任一关键词（不区分大小写）
+func (s *ErrorPassthroughService) containsAnyKeyword(bodyLower string, keywords []string) bool {
+	for _, kw := range keywords {
+		if strings.Contains(bodyLower, strings.ToLower(kw)) {
+			return true
+		}
+	}
+	return false
+}

backend/internal/service/error_passthrough_service_test.go

@@ -0,0 +1,755 @@
+//go:build unit
+
+package service
+
+import (
+	"context"
+	"strings"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/model"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// mockErrorPassthroughRepo 用于测试的 mock repository
+type mockErrorPassthroughRepo struct {
+	rules []*model.ErrorPassthroughRule
+}
+
+func (m *mockErrorPassthroughRepo) List(ctx context.Context) ([]*model.ErrorPassthroughRule, error) {
+	return m.rules, nil
+}
+
+func (m *mockErrorPassthroughRepo) GetByID(ctx context.Context, id int64) (*model.ErrorPassthroughRule, error) {
+	for _, r := range m.rules {
+		if r.ID == id {
+			return r, nil
+		}
+	}
+	return nil, nil
+}
+
+func (m *mockErrorPassthroughRepo) Create(ctx context.Context, rule *model.ErrorPassthroughRule) (*model.ErrorPassthroughRule, error) {
+	rule.ID = int64(len(m.rules) + 1)
+	m.rules = append(m.rules, rule)
+	return rule, nil
+}
+
+func (m *mockErrorPassthroughRepo) Update(ctx context.Context, rule *model.ErrorPassthroughRule) (*model.ErrorPassthroughRule, error) {
+	for i, r := range m.rules {
+		if r.ID == rule.ID {
+			m.rules[i] = rule
+			return rule, nil
+		}
+	}
+	return rule, nil
+}
+
+func (m *mockErrorPassthroughRepo) Delete(ctx context.Context, id int64) error {
+	for i, r := range m.rules {
+		if r.ID == id {
+			m.rules = append(m.rules[:i], m.rules[i+1:]...)
+			return nil
+		}
+	}
+	return nil
+}
+
+// newTestService 创建测试用的服务实例
+func newTestService(rules []*model.ErrorPassthroughRule) *ErrorPassthroughService {
+	repo := &mockErrorPassthroughRepo{rules: rules}
+	svc := &ErrorPassthroughService{
+		repo:  repo,
+		cache: nil, // 不使用缓存
+	}
+	// 直接设置本地缓存，避免调用 refreshLocalCache
+	svc.setLocalCache(rules)
+	return svc
+}
+
+// =============================================================================
+// 测试 ruleMatches 核心匹配逻辑
+// =============================================================================
+
+func TestRuleMatches_NoConditions(t *testing.T) {
+	// 没有配置任何条件时，不应该匹配
+	svc := newTestService(nil)
+	rule := &model.ErrorPassthroughRule{
+		Enabled:    true,
+		ErrorCodes: []int{},
+		Keywords:   []string{},
+		MatchMode:  model.MatchModeAny,
+	}
+
+	assert.False(t, svc.ruleMatches(rule, 422, "some error message"),
+		"没有配置条件时不应该匹配")
+}
+
+func TestRuleMatches_OnlyErrorCodes_AnyMode(t *testing.T) {
+	svc := newTestService(nil)
+	rule := &model.ErrorPassthroughRule{
+		Enabled:    true,
+		ErrorCodes: []int{422, 400},
+		Keywords:   []string{},
+		MatchMode:  model.MatchModeAny,
+	}
+
+	tests := []struct {
+		name       string
+		statusCode int
+		body       string
+		expected   bool
+	}{
+		{"状态码匹配 422", 422, "any message", true},
+		{"状态码匹配 400", 400, "any message", true},
+		{"状态码不匹配 500", 500, "any message", false},
+		{"状态码不匹配 429", 429, "any message", false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := svc.ruleMatches(rule, tt.statusCode, tt.body)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}
+
+func TestRuleMatches_OnlyKeywords_AnyMode(t *testing.T) {
+	svc := newTestService(nil)
+	rule := &model.ErrorPassthroughRule{
+		Enabled:    true,
+		ErrorCodes: []int{},
+		Keywords:   []string{"context limit", "model not supported"},
+		MatchMode:  model.MatchModeAny,
+	}
+
+	tests := []struct {
+		name       string
+		statusCode int
+		body       string
+		expected   bool
+	}{
+		{"关键词匹配 context limit", 500, "error: context limit reached", true},
+		{"关键词匹配 model not supported", 400, "the model not supported here", true},
+		{"关键词不匹配", 422, "some other error", false},
+		// 注意：ruleMatches 接收的 body 参数应该是已经转换为小写的
+		// 实际使用时，MatchRule 会先将 body 转换为小写再传给 ruleMatches
+		{"关键词大小写 - 输入已小写", 500, "context limit exceeded", true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// 模拟 MatchRule 的行为：先转换为小写
+			bodyLower := strings.ToLower(tt.body)
+			result := svc.ruleMatches(rule, tt.statusCode, bodyLower)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}
+
+func TestRuleMatches_BothConditions_AnyMode(t *testing.T) {
+	// any 模式：错误码 OR 关键词
+	svc := newTestService(nil)
+	rule := &model.ErrorPassthroughRule{
+		Enabled:    true,
+		ErrorCodes: []int{422, 400},
+		Keywords:   []string{"context limit"},
+		MatchMode:  model.MatchModeAny,
+	}
+
+	tests := []struct {
+		name       string
+		statusCode int
+		body       string
+		expected   bool
+		reason     string
+	}{
+		{
+			name:       "状态码和关键词都匹配",
+			statusCode: 422,
+			body:       "context limit reached",
+			expected:   true,
+			reason:     "both match",
+		},
+		{
+			name:       "只有状态码匹配",
+			statusCode: 422,
+			body:       "some other error",
+			expected:   true,
+			reason:     "code matches, keyword doesn't - OR mode should match",
+		},
+		{
+			name:       "只有关键词匹配",
+			statusCode: 500,
+			body:       "context limit exceeded",
+			expected:   true,
+			reason:     "keyword matches, code doesn't - OR mode should match",
+		},
+		{
+			name:       "都不匹配",
+			statusCode: 500,
+			body:       "some other error",
+			expected:   false,
+			reason:     "neither matches",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := svc.ruleMatches(rule, tt.statusCode, tt.body)
+			assert.Equal(t, tt.expected, result, tt.reason)
+		})
+	}
+}
+
+func TestRuleMatches_BothConditions_AllMode(t *testing.T) {
+	// all 模式：错误码 AND 关键词
+	svc := newTestService(nil)
+	rule := &model.ErrorPassthroughRule{
+		Enabled:    true,
+		ErrorCodes: []int{422, 400},
+		Keywords:   []string{"context limit"},
+		MatchMode:  model.MatchModeAll,
+	}
+
+	tests := []struct {
+		name       string
+		statusCode int
+		body       string
+		expected   bool
+		reason     string
+	}{
+		{
+			name:       "状态码和关键词都匹配",
+			statusCode: 422,
+			body:       "context limit reached",
+			expected:   true,
+			reason:     "both match - AND mode should match",
+		},
+		{
+			name:       "只有状态码匹配",
+			statusCode: 422,
+			body:       "some other error",
+			expected:   false,
+			reason:     "code matches but keyword doesn't - AND mode should NOT match",
+		},
+		{
+			name:       "只有关键词匹配",
+			statusCode: 500,
+			body:       "context limit exceeded",
+			expected:   false,
+			reason:     "keyword matches but code doesn't - AND mode should NOT match",
+		},
+		{
+			name:       "都不匹配",
+			statusCode: 500,
+			body:       "some other error",
+			expected:   false,
+			reason:     "neither matches",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := svc.ruleMatches(rule, tt.statusCode, tt.body)
+			assert.Equal(t, tt.expected, result, tt.reason)
+		})
+	}
+}
+
+// =============================================================================
+// 测试 platformMatches 平台匹配逻辑
+// =============================================================================
+
+func TestPlatformMatches(t *testing.T) {
+	svc := newTestService(nil)
+
+	tests := []struct {
+		name            string
+		rulePlatforms   []string
+		requestPlatform string
+		expected        bool
+	}{
+		{
+			name:            "空平台列表匹配所有",
+			rulePlatforms:   []string{},
+			requestPlatform: "anthropic",
+			expected:        true,
+		},
+		{
+			name:            "nil平台列表匹配所有",
+			rulePlatforms:   nil,
+			requestPlatform: "openai",
+			expected:        true,
+		},
+		{
+			name:            "精确匹配 anthropic",
+			rulePlatforms:   []string{"anthropic", "openai"},
+			requestPlatform: "anthropic",
+			expected:        true,
+		},
+		{
+			name:            "精确匹配 openai",
+			rulePlatforms:   []string{"anthropic", "openai"},
+			requestPlatform: "openai",
+			expected:        true,
+		},
+		{
+			name:            "不匹配 gemini",
+			rulePlatforms:   []string{"anthropic", "openai"},
+			requestPlatform: "gemini",
+			expected:        false,
+		},
+		{
+			name:            "大小写不敏感",
+			rulePlatforms:   []string{"Anthropic", "OpenAI"},
+			requestPlatform: "anthropic",
+			expected:        true,
+		},
+		{
+			name:            "匹配 antigravity",
+			rulePlatforms:   []string{"antigravity"},
+			requestPlatform: "antigravity",
+			expected:        true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			rule := &model.ErrorPassthroughRule{
+				Platforms: tt.rulePlatforms,
+			}
+			result := svc.platformMatches(rule, tt.requestPlatform)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}
+
+// =============================================================================
+// 测试 MatchRule 完整匹配流程
+// =============================================================================
+
+func TestMatchRule_Priority(t *testing.T) {
+	// 测试规则按优先级排序，优先级小的先匹配
+	rules := []*model.ErrorPassthroughRule{
+		{
+			ID:         1,
+			Name:       "Low Priority",
+			Enabled:    true,
+			Priority:   10,
+			ErrorCodes: []int{422},
+			MatchMode:  model.MatchModeAny,
+		},
+		{
+			ID:         2,
+			Name:       "High Priority",
+			Enabled:    true,
+			Priority:   1,
+			ErrorCodes: []int{422},
+			MatchMode:  model.MatchModeAny,
+		},
+	}
+
+	svc := newTestService(rules)
+	matched := svc.MatchRule("anthropic", 422, []byte("error"))
+
+	require.NotNil(t, matched)
+	assert.Equal(t, int64(2), matched.ID, "应该匹配优先级更高(数值更小)的规则")
+	assert.Equal(t, "High Priority", matched.Name)
+}
+
+func TestMatchRule_DisabledRule(t *testing.T) {
+	rules := []*model.ErrorPassthroughRule{
+		{
+			ID:         1,
+			Name:       "Disabled Rule",
+			Enabled:    false,
+			Priority:   1,
+			ErrorCodes: []int{422},
+			MatchMode:  model.MatchModeAny,
+		},
+		{
+			ID:         2,
+			Name:       "Enabled Rule",
+			Enabled:    true,
+			Priority:   10,
+			ErrorCodes: []int{422},
+			MatchMode:  model.MatchModeAny,
+		},
+	}
+
+	svc := newTestService(rules)
+	matched := svc.MatchRule("anthropic", 422, []byte("error"))
+
+	require.NotNil(t, matched)
+	assert.Equal(t, int64(2), matched.ID, "应该跳过禁用的规则")
+}
+
+func TestMatchRule_PlatformFilter(t *testing.T) {
+	rules := []*model.ErrorPassthroughRule{
+		{
+			ID:         1,
+			Name:       "Anthropic Only",
+			Enabled:    true,
+			Priority:   1,
+			ErrorCodes: []int{422},
+			Platforms:  []string{"anthropic"},
+			MatchMode:  model.MatchModeAny,
+		},
+		{
+			ID:         2,
+			Name:       "OpenAI Only",
+			Enabled:    true,
+			Priority:   2,
+			ErrorCodes: []int{422},
+			Platforms:  []string{"openai"},
+			MatchMode:  model.MatchModeAny,
+		},
+		{
+			ID:         3,
+			Name:       "All Platforms",
+			Enabled:    true,
+			Priority:   3,
+			ErrorCodes: []int{422},
+			Platforms:  []string{},
+			MatchMode:  model.MatchModeAny,
+		},
+	}
+
+	svc := newTestService(rules)
+
+	t.Run("Anthropic 请求匹配 Anthropic 规则", func(t *testing.T) {
+		matched := svc.MatchRule("anthropic", 422, []byte("error"))
+		require.NotNil(t, matched)
+		assert.Equal(t, int64(1), matched.ID)
+	})
+
+	t.Run("OpenAI 请求匹配 OpenAI 规则", func(t *testing.T) {
+		matched := svc.MatchRule("openai", 422, []byte("error"))
+		require.NotNil(t, matched)
+		assert.Equal(t, int64(2), matched.ID)
+	})
+
+	t.Run("Gemini 请求匹配全平台规则", func(t *testing.T) {
+		matched := svc.MatchRule("gemini", 422, []byte("error"))
+		require.NotNil(t, matched)
+		assert.Equal(t, int64(3), matched.ID)
+	})
+
+	t.Run("Antigravity 请求匹配全平台规则", func(t *testing.T) {
+		matched := svc.MatchRule("antigravity", 422, []byte("error"))
+		require.NotNil(t, matched)
+		assert.Equal(t, int64(3), matched.ID)
+	})
+}
+
+func TestMatchRule_NoMatch(t *testing.T) {
+	rules := []*model.ErrorPassthroughRule{
+		{
+			ID:         1,
+			Name:       "Rule for 422",
+			Enabled:    true,
+			Priority:   1,
+			ErrorCodes: []int{422},
+			MatchMode:  model.MatchModeAny,
+		},
+	}
+
+	svc := newTestService(rules)
+	matched := svc.MatchRule("anthropic", 500, []byte("error"))
+
+	assert.Nil(t, matched, "不匹配任何规则时应返回 nil")
+}
+
+func TestMatchRule_EmptyRules(t *testing.T) {
+	svc := newTestService([]*model.ErrorPassthroughRule{})
+	matched := svc.MatchRule("anthropic", 422, []byte("error"))
+
+	assert.Nil(t, matched, "没有规则时应返回 nil")
+}
+
+func TestMatchRule_CaseInsensitiveKeyword(t *testing.T) {
+	rules := []*model.ErrorPassthroughRule{
+		{
+			ID:        1,
+			Name:      "Context Limit",
+			Enabled:   true,
+			Priority:  1,
+			Keywords:  []string{"Context Limit"},
+			MatchMode: model.MatchModeAny,
+		},
+	}
+
+	svc := newTestService(rules)
+
+	tests := []struct {
+		name     string
+		body     string
+		expected bool
+	}{
+		{"完全匹配", "Context Limit reached", true},
+		{"小写匹配", "context limit reached", true},
+		{"大写匹配", "CONTEXT LIMIT REACHED", true},
+		{"混合大小写", "ConTeXt LiMiT error", true},
+		{"不匹配", "some other error", false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			matched := svc.MatchRule("anthropic", 500, []byte(tt.body))
+			if tt.expected {
+				assert.NotNil(t, matched)
+			} else {
+				assert.Nil(t, matched)
+			}
+		})
+	}
+}
+
+// =============================================================================
+// 测试真实场景
+// =============================================================================
+
+func TestMatchRule_RealWorldScenario_ContextLimitPassthrough(t *testing.T) {
+	// 场景：上游返回 422 + "context limit has been reached"，需要透传给客户端
+	rules := []*model.ErrorPassthroughRule{
+		{
+			ID:              1,
+			Name:            "Context Limit Passthrough",
+			Enabled:         true,
+			Priority:        1,
+			ErrorCodes:      []int{422},
+			Keywords:        []string{"context limit"},
+			MatchMode:       model.MatchModeAll, // 必须同时满足
+			Platforms:       []string{"anthropic", "antigravity"},
+			PassthroughCode: true,
+			PassthroughBody: true,
+		},
+	}
+
+	svc := newTestService(rules)
+
+	// 测试 Anthropic 平台
+	t.Run("Anthropic 422 with context limit", func(t *testing.T) {
+		body := []byte(`{"type":"error","error":{"type":"invalid_request","message":"The context limit has been reached"}}`)
+		matched := svc.MatchRule("anthropic", 422, body)
+		require.NotNil(t, matched)
+		assert.True(t, matched.PassthroughCode)
+		assert.True(t, matched.PassthroughBody)
+	})
+
+	// 测试 Antigravity 平台
+	t.Run("Antigravity 422 with context limit", func(t *testing.T) {
+		body := []byte(`{"error":"context limit exceeded"}`)
+		matched := svc.MatchRule("antigravity", 422, body)
+		require.NotNil(t, matched)
+	})
+
+	// 测试 OpenAI 平台（不在规则的平台列表中）
+	t.Run("OpenAI should not match", func(t *testing.T) {
+		body := []byte(`{"error":"context limit exceeded"}`)
+		matched := svc.MatchRule("openai", 422, body)
+		assert.Nil(t, matched, "OpenAI 不在规则的平台列表中")
+	})
+
+	// 测试状态码不匹配
+	t.Run("Wrong status code", func(t *testing.T) {
+		body := []byte(`{"error":"context limit exceeded"}`)
+		matched := svc.MatchRule("anthropic", 400, body)
+		assert.Nil(t, matched, "状态码不匹配")
+	})
+
+	// 测试关键词不匹配
+	t.Run("Wrong keyword", func(t *testing.T) {
+		body := []byte(`{"error":"rate limit exceeded"}`)
+		matched := svc.MatchRule("anthropic", 422, body)
+		assert.Nil(t, matched, "关键词不匹配")
+	})
+}
+
+func TestMatchRule_RealWorldScenario_CustomErrorMessage(t *testing.T) {
+	// 场景：某些错误需要返回自定义消息，隐藏上游详细信息
+	customMsg := "Service temporarily unavailable, please try again later"
+	responseCode := 503
+	rules := []*model.ErrorPassthroughRule{
+		{
+			ID:              1,
+			Name:            "Hide Internal Errors",
+			Enabled:         true,
+			Priority:        1,
+			ErrorCodes:      []int{500, 502, 503},
+			MatchMode:       model.MatchModeAny,
+			PassthroughCode: false,
+			ResponseCode:    &responseCode,
+			PassthroughBody: false,
+			CustomMessage:   &customMsg,
+		},
+	}
+
+	svc := newTestService(rules)
+
+	matched := svc.MatchRule("anthropic", 500, []byte("internal server error"))
+	require.NotNil(t, matched)
+	assert.False(t, matched.PassthroughCode)
+	assert.Equal(t, 503, *matched.ResponseCode)
+	assert.False(t, matched.PassthroughBody)
+	assert.Equal(t, customMsg, *matched.CustomMessage)
+}
+
+// =============================================================================
+// 测试 model.Validate
+// =============================================================================
+
+func TestErrorPassthroughRule_Validate(t *testing.T) {
+	tests := []struct {
+		name        string
+		rule        *model.ErrorPassthroughRule
+		expectError bool
+		errorField  string
+	}{
+		{
+			name: "有效规则 - 透传模式（含错误码）",
+			rule: &model.ErrorPassthroughRule{
+				Name:            "Valid Rule",
+				MatchMode:       model.MatchModeAny,
+				ErrorCodes:      []int{422},
+				PassthroughCode: true,
+				PassthroughBody: true,
+			},
+			expectError: false,
+		},
+		{
+			name: "有效规则 - 透传模式（含关键词）",
+			rule: &model.ErrorPassthroughRule{
+				Name:            "Valid Rule",
+				MatchMode:       model.MatchModeAny,
+				Keywords:        []string{"context limit"},
+				PassthroughCode: true,
+				PassthroughBody: true,
+			},
+			expectError: false,
+		},
+		{
+			name: "有效规则 - 自定义响应",
+			rule: &model.ErrorPassthroughRule{
+				Name:            "Valid Rule",
+				MatchMode:       model.MatchModeAll,
+				ErrorCodes:      []int{500},
+				Keywords:        []string{"internal error"},
+				PassthroughCode: false,
+				ResponseCode:    testIntPtr(503),
+				PassthroughBody: false,
+				CustomMessage:   testStrPtr("Custom error"),
+			},
+			expectError: false,
+		},
+		{
+			name: "缺少名称",
+			rule: &model.ErrorPassthroughRule{
+				Name:            "",
+				MatchMode:       model.MatchModeAny,
+				ErrorCodes:      []int{422},
+				PassthroughCode: true,
+				PassthroughBody: true,
+			},
+			expectError: true,
+			errorField:  "name",
+		},
+		{
+			name: "无效的匹配模式",
+			rule: &model.ErrorPassthroughRule{
+				Name:            "Invalid Mode",
+				MatchMode:       "invalid",
+				ErrorCodes:      []int{422},
+				PassthroughCode: true,
+				PassthroughBody: true,
+			},
+			expectError: true,
+			errorField:  "match_mode",
+		},
+		{
+			name: "缺少匹配条件（错误码和关键词都为空）",
+			rule: &model.ErrorPassthroughRule{
+				Name:            "No Conditions",
+				MatchMode:       model.MatchModeAny,
+				ErrorCodes:      []int{},
+				Keywords:        []string{},
+				PassthroughCode: true,
+				PassthroughBody: true,
+			},
+			expectError: true,
+			errorField:  "conditions",
+		},
+		{
+			name: "缺少匹配条件（nil切片）",
+			rule: &model.ErrorPassthroughRule{
+				Name:            "Nil Conditions",
+				MatchMode:       model.MatchModeAny,
+				ErrorCodes:      nil,
+				Keywords:        nil,
+				PassthroughCode: true,
+				PassthroughBody: true,
+			},
+			expectError: true,
+			errorField:  "conditions",
+		},
+		{
+			name: "自定义状态码但未提供值",
+			rule: &model.ErrorPassthroughRule{
+				Name:            "Missing Code",
+				MatchMode:       model.MatchModeAny,
+				ErrorCodes:      []int{422},
+				PassthroughCode: false,
+				ResponseCode:    nil,
+				PassthroughBody: true,
+			},
+			expectError: true,
+			errorField:  "response_code",
+		},
+		{
+			name: "自定义消息但未提供值",
+			rule: &model.ErrorPassthroughRule{
+				Name:            "Missing Message",
+				MatchMode:       model.MatchModeAny,
+				ErrorCodes:      []int{422},
+				PassthroughCode: true,
+				PassthroughBody: false,
+				CustomMessage:   nil,
+			},
+			expectError: true,
+			errorField:  "custom_message",
+		},
+		{
+			name: "自定义消息为空字符串",
+			rule: &model.ErrorPassthroughRule{
+				Name:            "Empty Message",
+				MatchMode:       model.MatchModeAny,
+				ErrorCodes:      []int{422},
+				PassthroughCode: true,
+				PassthroughBody: false,
+				CustomMessage:   testStrPtr(""),
+			},
+			expectError: true,
+			errorField:  "custom_message",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := tt.rule.Validate()
+			if tt.expectError {
+				require.Error(t, err)
+				validationErr, ok := err.(*model.ValidationError)
+				require.True(t, ok, "应该返回 ValidationError")
+				assert.Equal(t, tt.errorField, validationErr.Field)
+			} else {
+				assert.NoError(t, err)
+			}
+		})
+	}
+}
+
+// Helper functions
+func testIntPtr(i int) *int       { return &i }
+func testStrPtr(s string) *string { return &s }

backend/internal/service/gateway_service.go

@@ -370,7 +370,8 @@ type ForwardResult struct {
 
 // UpstreamFailoverError indicates an upstream error that should trigger account failover.
 type UpstreamFailoverError struct {
-	StatusCode int
+	StatusCode   int
+	ResponseBody []byte // 上游响应体，用于错误透传规则匹配
 }
 
 func (e *UpstreamFailoverError) Error() string {
@@ -3284,7 +3285,7 @@ func (s *GatewayService) Forward(ctx context.Context, c *gin.Context, account *A
 					return ""
 				}(),
 			})
-			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: respBody}
 		}
 		return s.handleRetryExhaustedError(ctx, resp, c, account)
 	}
@@ -3314,10 +3315,8 @@ func (s *GatewayService) Forward(ctx context.Context, c *gin.Context, account *A
 				return ""
 			}(),
 		})
-		return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+		return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: respBody}
 	}
-
-	// 处理错误响应（不可重试的错误）
 	if resp.StatusCode >= 400 {
 		// 可选：对部分 400 触发 failover（默认关闭以保持语义）
 		if resp.StatusCode == 400 && s.cfg != nil && s.cfg.Gateway.FailoverOn400 {
@@ -3361,7 +3360,7 @@ func (s *GatewayService) Forward(ctx context.Context, c *gin.Context, account *A
 					log.Printf("Account %d: 400 error, attempting failover", account.ID)
 				}
 				s.handleFailoverSideEffects(ctx, resp, account)
-				return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+				return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: respBody}
 			}
 		}
 		return s.handleErrorResponse(ctx, resp, c, account)
@@ -3758,6 +3757,12 @@ func (s *GatewayService) shouldFailoverOn400(respBody []byte) bool {
 	return false
 }
 
+// ExtractUpstreamErrorMessage 从上游响应体中提取错误消息
+// 支持 Claude 风格的错误格式：{"type":"error","error":{"type":"...","message":"..."}}
+func ExtractUpstreamErrorMessage(body []byte) string {
+	return extractUpstreamErrorMessage(body)
+}
+
 func extractUpstreamErrorMessage(body []byte) string {
 	// Claude 风格：{"type":"error","error":{"type":"...","message":"..."}}
 	if m := gjson.GetBytes(body, "error.message").String(); strings.TrimSpace(m) != "" {
@@ -3825,7 +3830,7 @@ func (s *GatewayService) handleErrorResponse(ctx context.Context, resp *http.Res
 		shouldDisable = s.rateLimitService.HandleUpstreamError(ctx, account, resp.StatusCode, resp.Header, body)
 	}
 	if shouldDisable {
-		return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+		return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: body}
 	}
 
 	// 记录上游错误响应体摘要便于排障（可选：由配置控制；不回显到客户端）

backend/internal/service/gemini_messages_compat_service.go

@@ -864,7 +864,7 @@ func (s *GeminiMessagesCompatService) Forward(ctx context.Context, c *gin.Contex
 				Message:            upstreamMsg,
 				Detail:             upstreamDetail,
 			})
-			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: respBody}
 		}
 		if s.shouldFailoverGeminiUpstreamError(resp.StatusCode) {
 			upstreamReqID := resp.Header.Get(requestIDHeader)
@@ -891,7 +891,7 @@ func (s *GeminiMessagesCompatService) Forward(ctx context.Context, c *gin.Contex
 				Message:            upstreamMsg,
 				Detail:             upstreamDetail,
 			})
-			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: respBody}
 		}
 		upstreamReqID := resp.Header.Get(requestIDHeader)
 		if upstreamReqID == "" {
@@ -1301,7 +1301,7 @@ func (s *GeminiMessagesCompatService) ForwardNative(ctx context.Context, c *gin.
 				Message:            upstreamMsg,
 				Detail:             upstreamDetail,
 			})
-			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: respBody}
 		}
 		if s.shouldFailoverGeminiUpstreamError(resp.StatusCode) {
 			evBody := unwrapIfNeeded(isOAuth, respBody)
@@ -1325,7 +1325,7 @@ func (s *GeminiMessagesCompatService) ForwardNative(ctx context.Context, c *gin.
 				Message:            upstreamMsg,
 				Detail:             upstreamDetail,
 			})
-			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: evBody}
 		}
 
 		respBody = unwrapIfNeeded(isOAuth, respBody)

backend/internal/service/openai_gateway_service.go

@@ -940,7 +940,7 @@ func (s *OpenAIGatewayService) Forward(ctx context.Context, c *gin.Context, acco
 			})
 
 			s.handleFailoverSideEffects(ctx, resp, account)
-			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+			return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: respBody}
 		}
 		return s.handleErrorResponse(ctx, resp, c, account)
 	}
@@ -1131,7 +1131,7 @@ func (s *OpenAIGatewayService) handleErrorResponse(ctx context.Context, resp *ht
 		Detail:             upstreamDetail,
 	})
 	if shouldDisable {
-		return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
+		return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode, ResponseBody: body}
 	}
 
 	// Return appropriate error response

backend/internal/service/wire.go

@@ -274,4 +274,5 @@ var ProviderSet = wire.NewSet(
 	NewUserAttributeService,
 	NewUsageCache,
 	NewTotpService,
+	NewErrorPassthroughService,
 )

backend/migrations/048_add_error_passthrough_rules.sql

@@ -0,0 +1,24 @@
+-- Error Passthrough Rules table
+-- Allows administrators to configure how upstream errors are passed through to clients
+
+CREATE TABLE IF NOT EXISTS error_passthrough_rules (
+    id BIGSERIAL PRIMARY KEY,
+    name VARCHAR(100) NOT NULL,
+    enabled BOOLEAN NOT NULL DEFAULT true,
+    priority INTEGER NOT NULL DEFAULT 0,
+    error_codes JSONB DEFAULT '[]',
+    keywords JSONB DEFAULT '[]',
+    match_mode VARCHAR(10) NOT NULL DEFAULT 'any',
+    platforms JSONB DEFAULT '[]',
+    passthrough_code BOOLEAN NOT NULL DEFAULT true,
+    response_code INTEGER,
+    passthrough_body BOOLEAN NOT NULL DEFAULT true,
+    custom_message TEXT,
+    description TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- Indexes for efficient queries
+CREATE INDEX IF NOT EXISTS idx_error_passthrough_rules_enabled ON error_passthrough_rules (enabled);
+CREATE INDEX IF NOT EXISTS idx_error_passthrough_rules_priority ON error_passthrough_rules (priority);