feat：add CLI param-override templates with visual editor and apply on first rule match

setting/operation_setting/channel_affinity_setting.go

@@ -18,6 +18,8 @@ type ChannelAffinityRule struct {
 	ValueRegex string `json:"value_regex"`
 	TTLSeconds int    `json:"ttl_seconds"`
 
+	ParamOverrideTemplate map[string]interface{} `json:"param_override_template,omitempty"`
+
 	SkipRetryOnFailure bool `json:"skip_retry_on_failure,omitempty"`
 
 	IncludeUsingGroup bool `json:"include_using_group"`
@@ -32,6 +34,44 @@ type ChannelAffinitySetting struct {
 	Rules             []ChannelAffinityRule `json:"rules"`
 }
 
+var codexCliPassThroughHeaders = []string{
+	"Originator",
+	"Session_id",
+	"User-Agent",
+	"X-Codex-Beta-Features",
+	"X-Codex-Turn-Metadata",
+}
+
+var claudeCliPassThroughHeaders = []string{
+	"X-Stainless-Arch",
+	"X-Stainless-Lang",
+	"X-Stainless-Os",
+	"X-Stainless-Package-Version",
+	"X-Stainless-Retry-Count",
+	"X-Stainless-Runtime",
+	"X-Stainless-Runtime-Version",
+	"X-Stainless-Timeout",
+	"User-Agent",
+	"X-App",
+	"Anthropic-Beta",
+	"Anthropic-Dangerous-Direct-Browser-Access",
+	"Anthropic-Version",
+}
+
+func buildPassHeaderTemplate(headers []string) map[string]interface{} {
+	clonedHeaders := make([]string, 0, len(headers))
+	clonedHeaders = append(clonedHeaders, headers...)
+	return map[string]interface{}{
+		"operations": []map[string]interface{}{
+			{
+				"mode":        "pass_headers",
+				"value":       clonedHeaders,
+				"keep_origin": true,
+			},
+		},
+	}
+}
+
 var channelAffinitySetting = ChannelAffinitySetting{
 	Enabled:           true,
 	SwitchOnSuccess:   true,
@@ -39,32 +79,34 @@ var channelAffinitySetting = ChannelAffinitySetting{
 	DefaultTTLSeconds: 3600,
 	Rules: []ChannelAffinityRule{
 		{
-			Name:       "codex trace",
+			Name:       "codex cli trace",
 			ModelRegex: []string{"^gpt-.*$"},
 			PathRegex:  []string{"/v1/responses"},
 			KeySources: []ChannelAffinityKeySource{
 				{Type: "gjson", Path: "prompt_cache_key"},
 			},
-			ValueRegex:         "",
-			TTLSeconds:         0,
-			SkipRetryOnFailure: false,
-			IncludeUsingGroup:  true,
-			IncludeRuleName:    true,
-			UserAgentInclude:   nil,
+			ValueRegex:            "",
+			TTLSeconds:            0,
+			ParamOverrideTemplate: buildPassHeaderTemplate(codexCliPassThroughHeaders),
+			SkipRetryOnFailure:    false,
+			IncludeUsingGroup:     true,
+			IncludeRuleName:       true,
+			UserAgentInclude:      nil,
 		},
 		{
-			Name:       "claude code trace",
+			Name:       "claude cli trace",
 			ModelRegex: []string{"^claude-.*$"},
 			PathRegex:  []string{"/v1/messages"},
 			KeySources: []ChannelAffinityKeySource{
 				{Type: "gjson", Path: "metadata.user_id"},
 			},
-			ValueRegex:         "",
-			TTLSeconds:         0,
-			SkipRetryOnFailure: false,
-			IncludeUsingGroup:  true,
-			IncludeRuleName:    true,
-			UserAgentInclude:   nil,
+			ValueRegex:            "",
+			TTLSeconds:            0,
+			ParamOverrideTemplate: buildPassHeaderTemplate(claudeCliPassThroughHeaders),
+			SkipRetryOnFailure:    false,
+			IncludeUsingGroup:     true,
+			IncludeRuleName:       true,
+			UserAgentInclude:      nil,
 		},
 	},
 }