✨ feat: add subscription billing system (#2808)

* ci: create docker automation

* ✨ feat: add subscription billing system with admin management and user purchase flow

Implement a new subscription-based billing model alongside existing metered/per-request billing:

Backend:
- Add subscription plan models (SubscriptionPlan, SubscriptionPlanItem, UserSubscription, etc.)
- Implement CRUD APIs for subscription plan management (admin only)
- Add user subscription queries with support for multiple active/expired subscriptions
- Integrate payment gateways (Stripe, Creem, Epay) for subscription purchases
- Implement pre-consume and post-consume billing logic for subscription quota tracking
- Add billing preference settings (subscription_first, wallet_first, etc.)
- Enhance usage logs with subscription deduction details

Frontend - Admin:
- Add subscription management page with table view and drawer-based edit form
- Match UI/UX style with existing admin pages (redemption codes, users)
- Support enabling/disabling plans, configuring payment IDs, and model quotas
- Add user subscription binding modal in user management

Frontend - Wallet:
- Add subscription plans card with current subscription status display
- Show all subscriptions (active and expired) with remaining days/usage percentage
- Display purchasable plans with pricing cards following SaaS best practices
- Extract purchase modal to separate component matching payment confirm modal style
- Add skeleton loading states with active animation
- Implement billing preference selector in card header
- Handle payment gateway availability based on admin configuration

Frontend - Usage Logs:
- Display subscription deduction details in log entries
- Show step-by-step breakdown of subscription usage (pre-consumed, delta, final, remaining)
- Add subscription deduction tag for subscription-covered requests

* ✨ feat(admin): add user subscription management and refine UI/pagination

Add admin APIs to list/create/invalidate/delete user subscriptions
Add model helpers to fetch all user subscriptions (incl. expired) and support cancel/hard-delete
Wire new admin routes for user subscription operations
Replace “Bind subscription plan” entry with a dedicated User Subscriptions SideSheet in Users table
Use CardTable with responsive layout and working client-side pagination inside the SideSheet
Improve subscription purchase modal empty-gateway state with a Banner notice

* ✨ feat(admin): streamline subscription plan benefits editor with bulk actions

Restore the avatar/icon header for the “Model Benefits” section
Replace scattered controls with a compact toolbar-style workflow
Support multi-select add with a default quota for new items
Add row selection with bulk apply-to-selected / apply-to-all quota updates
Enable delete-selected to manage benefits faster and reduce mistakes

* ✨ fix(subscription): finalize payments, log billing, and clean up dead code

Complete subscription orders by creating a matching top-up record and writing billing logs
Add Epay return handler to verify and finalize browser callbacks
Require Stripe/Creem webhook configuration before starting subscription payments
Show subscription purchases in topup history with clearer labels/methods
Remove unused subscription helper, legacy Creem webhook struct, and unused topup fields
Simplify subscription self API payload to active/all lists only

* 🎨 style: format all code with gofmt and lint:fix

Apply consistent code formatting across the entire codebase using
gofmt and lint:fix tools. This ensures adherence to Go community
standards and improves code readability and maintainability.

Changes include:
- Run gofmt on all .go files to standardize formatting
- Apply lint:fix to automatically resolve linting issues
- Fix code style inconsistencies and formatting violations

No functional changes were made in this commit.

* ✨ feat(subscription): add quota reset periods and admin configuration

- Add reset period fields on subscription plans and user items
- Apply automatic quota resets during pre-consume based on plan schedule
- Expose reset-period configuration in the admin plan editor
- Display reset cadence in subscription cards and purchase modal
- Validate custom reset seconds on plan create/update

* ✨ feat(subscription): harden subscription billing with resets, idempotency, and production-grade stability

Add plan-level quota reset periods and display/reset cadence in admin/UI
Enforce natural reset alignment with background reset task and cleanup job
Make subscription pre-consume/refund idempotent with request-scoped records and retries
Use database time for consistent resets across multi-instance deployments
Harden payment callbacks with locking and idempotent order completion
Record subscription purchases in topup history and billing logs
Optimize subscription queries and add critical composite indexes

* ✨ feat(subscription): cache plan lookups and stabilize pre-consume

Introduce hybrid caches for subscription plans, items, and plan info with explicit
invalidation on admin updates. Streamline pre-consume transactions to reduce
redundant queries while preserving idempotency and reset logic.

* 🐛 fix(subscription): avoid pre-consume lookup noise

Use a RowsAffected check for the idempotency lookup so missing records
no longer surface as "record not found" errors while preserving behavior.

* 🔧 ci: Change workflow trigger to sub branch

Update the Docker image workflow to run on pushes to the sub branch instead of main.

* 💸 chore: Align subscription pricing display with global currency settings
Unify subscription price rendering to use the site-wide currency symbol/rate on the wallet and admin views.
Make subscription plan currency read-only in the editor and force USD on create/update to avoid drift.
Use global currency display type when creating Creem checkout payloads.

* 🔧 chore: Unify subscription plan status toggle with PATCH endpoint

Replace separate enable/disable flows with a single PATCH API that updates the enabled flag.
Update frontend hooks and table actions to call the unified endpoint and keep UI behavior consistent.
Introduce a minimal admin controller handler and route for the status update.

* ✨ feat: Add subscription limits and UI tags consistency

Add per-plan purchase limits with backend enforcement and UI disable states.
Expose limit configuration in admin plan editor and show limits in plan tables/cards.
Refine subscription UI tags with unified badge style and streamlined “My Subscriptions” layout.

* 🎨 style: tag color to white

* 🚀 refactor: Simplify subscription quota to total amount model

Remove per-model subscription items and switch to a single total quota per plan and user subscription. Update billing, reset, and logging flows to operate on total quota, and refactor admin/user UI to configure and display total quota consistently.

* 🚀 chore: Remove duplicate subscription usage percentage display

Keep the usage percentage shown only in the total quota line to avoid redundant “已用 0%” text while preserving remaining days in the summary.

* ✨ feat: Add subscription upgrade group with auto downgrade

* ✨ feat: Update subscription purchase modal display

Show total quota as currency with tooltip for raw quota, hide reset cycle when never, and display upgrade group when configured to match card display rules.

* ✨ feat: Extract quota conversion helpers to shared utils

Move quota display/conversion helpers into web/src/helpers/quota.js and update the subscription plan editor to import and use the shared utilities instead of inline functions.

* ✨ chore: Add upgrade group guidance in subscription editor

Add explanatory helper text under the upgrade group field to clarify automatic group upgrades, rollback conditions, and the expected delay before downgrading takes effect.

* 🔧 chore: remove unused Creem settings state

Drop the unused originInputs state and redundant updates to keep the Creem
settings form state minimal and easier to maintain.

* 🚀 chore: Remove useless action

* ✨ Add full i18n coverage for subscription-related UI across locales

* ✨ feat: harden subscription billing and improve UI consistency

Improve subscription payment safety and data integrity by handling user/URL lookup failures, fixing Stripe subscription mode, persisting quota reset fields, and correcting subscription delta accounting and DB timestamp casting. Refine the UI with stricter custom duration validation, accurate currency rounding, conditional Epay labeling, rollback on preference update failure, and shared subscription formatting helpers plus clearer component naming.

* 🔧 fix: make epay webhook and return flow subscription-aware

Ensure Epay webhook acknowledges success only after order completion, returning fail on processing errors to allow retries. Redirect subscription payment returns to the subscription page instead of top-up for correct user flow.

* 🚦 fix: guard epay return success on order completion
Redirect subscription return flow to failure when order completion fails, preventing false success states after payment verification.

* 🔧 fix: normalize epay error handling and webhook retries

Standardize SubscriptionRequestEpay error responses via ApiErrorMsg for a consistent schema.
Return "fail" on non-success trade statuses in the epay webhook to preserve retry behavior.

* 🧾 fix: persist epay orders before purchase

Create the subscription order before initiating epay payment and expire it if the provider call fails, preventing orphaned transactions and improving reconciliation.

* 🔧 fix: harden epay callbacks and billing fallbacks

Use POST and form parsing for epay notify/return routes, persist epay orders before provider calls with expiry on failure, and ensure notify handlers retry correctly.
Restrict subscription-first fallback to insufficient-subscription errors and log refund failures after retries to avoid silent quota drift.

* 🔧 fix: harden billing flow and sidebar settings

Add missing strings import for subscription fallback checks, log failed subscription refunds after retries, and extend sidebar module settings with a subscription management toggle plus translations.

* 🛡️ fix: fail fast on epay form parse errors

Handle ParseForm errors in epay notify/return handlers by returning fail or redirecting to failure, avoiding unsafe fallback to query parameters.

* ✨ fix: refine Japanese subscription status labels

Adjust Japanese UI wording for active-count labels to read more naturally and consistently.

* ✅ fix: standardize epay success response schema

Return subscription epay pay success responses via ApiSuccess to include the consistent success field and align with error schema.

web/src/i18n/locales/ja.json

@@ -2446,7 +2446,6 @@
     "重新生成备用码失败": "バックアップコードの再生成に失敗しました",
     "重新生成备用码将使现有的备用码失效，请确保您已保存了当前的备用码。": "バックアップコードを再生成すると、既存のバックアップコードは無効になります。現在のバックアップコードを保存済みであることをご確認ください。",
     "重绘": "再生成",
-    "重置": "リセット",
     "重置 2FA": "2要素認証のリセット",
     "重置 Passkey": "Passkeyリセット",
     "重置为默认": "デフォルトへのリセット",
@@ -2587,6 +2586,92 @@
     "格式化 JSON": "JSON を整形",
     "关闭提示": "お知らせを閉じる",
     "说明：本页测试为非流式请求；若渠道仅支持流式返回，可能出现测试失败，请以实际使用为准。": "注意: このページのテストは非ストリーミングリクエストです。チャネルがストリーミング応答のみ対応の場合、テストが失敗することがあります。実際の利用結果を優先してください。",
-    "提示：端点映射仅用于模型广场展示，不会影响模型真实调用。如需配置真实调用，请前往「渠道管理」。": "注意: エンドポイントマッピングは「モデル広場」での表示専用で、実際の呼び出しには影響しません。実際の呼び出し設定は「チャネル管理」で行ってください。"
+    "提示：端点映射仅用于模型广场展示，不会影响模型真实调用。如需配置真实调用，请前往「渠道管理」。": "注意: エンドポイントマッピングは「モデル広場」での表示専用で、実際の呼び出しには影響しません。実際の呼び出し設定は「チャネル管理」で行ってください。",
+    "Stripe/Creem 需在第三方平台创建商品并填入 ID": "Stripe/Creem の商品は外部プラットフォームで作成し、ID を入力してください",
+    "暂无订阅套餐": "利用可能なサブスクリプションプランがありません",
+    "订阅管理": "サブスクリプション管理",
+    "订阅套餐管理": "サブスクリプションプラン管理",
+    "新建套餐": "プラン作成",
+    "套餐": "プラン",
+    "支付渠道": "決済チャネル",
+    "购买上限": "購入上限",
+    "有效期": "有効期限",
+    "重置": "リセット",
+    "禁用后用户端不再展示，但历史订单不受影响。是否继续？": "無効化するとユーザー側に表示されなくなりますが、過去の注文には影響しません。続行しますか？",
+    "启用后套餐将在用户端展示。是否继续？": "有効化するとユーザー側に表示されます。続行しますか？",
+    "更新套餐信息": "プラン情報を更新",
+    "创建新的订阅套餐": "新しいサブスクリプションプランを作成",
+    "套餐的基本信息和定价": "プランの基本情報と価格",
+    "套餐标题": "プラン名",
+    "请输入套餐标题": "プラン名を入力してください",
+    "套餐副标题": "プランのサブタイトル",
+    "例如：适合轻度使用": "例：軽めの利用に最適",
+    "请输入金额": "金額を入力してください",
+    "请输入总额度": "総クォータを入力してください",
+    "0 表示不限": "0 は無制限を意味します",
+    "原生额度": "生クォータ",
+    "升级分组": "アップグレードグループ",
+    "不升级": "アップグレードしない",
+    "购买或手动新增订阅会升级到该分组；当套餐失效/过期或手动作废/删除后，将回退到升级前分组。回退不会立即生效，通常会有几分钟延迟。": "購入または手動での追加によりこのグループにアップグレードされます。プランの失効/期限切れ、無効化/削除後は元のグループに戻ります。反映には数分かかる場合があります。",
+    "币种": "通貨",
+    "由全站货币展示设置统一控制": "サイト全体の通貨表示設定で統一して管理",
+    "排序": "並び順",
+    "启用状态": "有効状態",
+    "有效期设置": "有効期限設定",
+    "配置套餐的有效时长": "プランの有効期間を設定",
+    "有效期单位": "有効期限の単位",
+    "自定义秒数": "秒数を指定",
+    "请输入秒数": "秒数を入力してください",
+    "有效期数值": "有効期限の値",
+    "额度重置": "クォータリセット",
+    "支持周期性重置套餐权益额度": "プランのクォータを定期的にリセット可能",
+    "重置周期": "リセット周期",
+    "第三方支付配置": "サードパーティ決済設定",
+    "Stripe/Creem 商品ID（可选）": "Stripe/Creem 商品ID（任意）",
+    "生效": "有効",
+    "已作废": "無効化済み",
+    "用户订阅管理": "ユーザーサブスクリプション管理",
+    "选择订阅套餐": "サブスクリプションプランを選択",
+    "新增订阅": "サブスクリプションを追加",
+    "暂无订阅记录": "サブスクリプション記録がありません",
+    "来源": "ソース",
+    "开始": "開始",
+    "结束": "終了",
+    "作废": "無効化",
+    "确认作废": "無効化の確認",
+    "作废后该订阅将立即失效，历史记录不受影响。是否继续？": "無効化するとこのサブスクリプションは直ちに失効します。履歴には影響しません。続行しますか？",
+    "删除会彻底移除该订阅记录（含权益明细）。是否继续？": "削除するとこのサブスクリプション記録（特典詳細を含む）が完全に削除されます。続行しますか？",
+    "绑定订阅套餐": "サブスクリプションプランを紐付け",
+    "绑定后会立即生成用户订阅（无需支付），有效期按套餐配置计算。": "紐付け後、ユーザーサブスクリプションが即時に作成されます（支払い不要）。有効期限はプラン設定に従います。",
+    "订阅套餐": "サブスクリプションプラン",
+    "购买订阅获得模型额度/次数": "サブスクリプション購入でモデルのクォータ/回数を取得",
+    "优先订阅": "サブスクリプション優先",
+    "优先钱包": "ウォレット優先",
+    "仅用订阅": "サブスクリプションのみ",
+    "仅用钱包": "ウォレットのみ",
+    "我的订阅": "私のサブスクリプション",
+    "个生效中": "件有効中",
+    "无生效": "有効なし",
+    "个已过期": "件期限切れ",
+    "订阅": "サブスクリプション",
+    "至": "まで",
+    "过期于": "有効期限",
+    "购买套餐后即可享受模型权益": "プラン購入後にモデル特典を利用できます",
+    "限购": "購入制限",
+    "推荐": "おすすめ",
+    "已达到购买上限": "購入上限に達しました",
+    "已达上限": "上限に達しました",
+    "立即订阅": "今すぐサブスクリプション",
+    "暂无可购买套餐": "購入可能なプランがありません",
+    "该套餐未配置 Stripe": "このプランには Stripe が設定されていません",
+    "已打开支付页面": "決済ページを開きました",
+    "支付失败": "支払いに失敗しました",
+    "该套餐未配置 Creem": "このプランには Creem が設定されていません",
+    "已发起支付": "支払いを開始しました",
+    "购买订阅套餐": "サブスクリプションプランを購入",
+    "套餐名称": "プラン名",
+    "应付金额": "支払金額",
+    "支付": "支払う",
+    "管理员未开启在线支付功能，请联系管理员配置。": "管理者がオンライン決済を有効にしていません。管理者に連絡してください。"
   }
 }