GitLab

- 通过 User-Agent 识别 Claude Code 客户端并提取版本号
- 在网关层验证客户端版本是否满足管理员配置的最低要求
- 在管理后台提供版本要求配置选项（英文/中文双语）
- 实现原子缓存 + singleflight 防止并发问题和 thundering herd
- 使用 context.WithoutCancel 隔离 DB 查询，避免客户端断连影响缓存
- 双 TTL 策略：60s 正常、5s 错误恢复，保证性能与可用性
- 仅检查 Claude Code 客户端，其他客户端不受影响
- 添加完整单元测试覆盖版本提取、比对、上下文操作

- 移除 README.md / README_CN.md 中的 Codex CLI WebSocket v2 配置示例
- UseKeyModal OpenAI 分组新增 "Codex CLI (WebSocket)" tab，区分普通模式与 WS 模式
- 普通模式 config.toml 不含 WebSocket 字段，WS 模式包含 supports_websockets 和 features 配置
- 所有配置统一使用 sub2api 作为 model_provider 名称

- Move IncrementRPM after Forward success to prevent phantom RPM
  consumption during account switch retries
- Add base_rpm input sanitization (clamp to 0-10000) in Create/Update
- Add WindowCost scheduling checks to legacy path sticky sessions
  (4 check sites + 4 prefetch sites), fixing pre-existing gap
- Clean up rpm_strategy/rpm_sticky_buffer when disabling RPM in
  BulkEditModal (JSONB merge cannot delete keys, use empty values)
- Add json.Number test cases to TestGetBaseRPM/TestGetRPMStickyBuffer
- Document TOCTOU race as accepted soft-limit design trade-off

Without this, submitting a bulk edit with only RPM changes would be
rejected as "no fields selected".

- Use TxPipeline (MULTI/EXEC) instead of Pipeline for atomic INCR+EXPIRE
- Filter negative values in GetBaseRPM(), update test expectation
- Add RPM batch query (GetRPMBatch) to account List API
- Add warn logs for RPM increment failures in gateway handler
- Reset enableRpmLimit on BulkEditAccountModal close
- Use union type 'tiered' | 'sticky_exempt' for rpmStrategy refs
- Add design decision comments for rdb.Time() RTT trade-off

## 核心功能
- 添加 AdminUpdateAPIKeyGroupID 服务方法，支持绑定/解绑/保持不变三态语义
- 实现 UserRepository.AddGroupToAllowedGroups 接口，自动同步专属分组权限
- 添加 HTTP PUT /api-keys/:id handler 端点，支持管理员直接修改 API Key 分组

## 事务一致性
- 使用 ent Tx 保证专属分组绑定时「添加权限」和「更新 Key」的原子性
- Repository 方法支持 clientFromContext，兼容事务内调用
- 事务失败时自动回滚，避免权限孤立

## 业务逻辑
- 订阅类型分组阻断，需通过订阅管理流程
- 非活跃分组拒绝绑定
- 负 ID 和非法 ID 验证
- 自动授权响应，告知管理员成功授权的分组

## 代码质量
- 16 个单元测试覆盖所有业务路径和边界用例
- 7 个 handler 集成测试覆盖 HTTP 层
- GroupRepo stub 返回克隆副本，防止测试间数据泄漏
- API 类型安全修复（PaginatedResponse<ApiKey>）
- 前端 ref 回调类型对齐 Vue 规范

## 国际化支持
- 中英文提示信息完整
- 自动授权成功/失败提示

- 新增 PUT /api/v1/admin/api-keys/:id 端点，允许管理员修改任意用户 API Key 的分组绑定
- 跳过用户级权限校验但保留分组有效性验证，修改后触发认证缓存失效
- Service 层支持三态语义：nil=不修改，0=解绑，>0=绑定，<0=拒绝
- 指针值拷贝保证安全隔离，负数 groupID 返回 400 INVALID_GROUP_ID
- 前端 UserApiKeysModal 新增可点击的分组选择下拉框，支持多 Key 并发更新
- 下拉支持视口翻转和滚动关闭，按钮有 disabled 和加载状态
- 覆盖：后端 20 个单元测试 (Service 11 + Handler 9) + 前端 16 个 E2E 测试
- golangci-lint 0 issues, make test-unit 全部通过

Previously 2K images used the same base price as 1K ($0.134).
Now 2K uses 1.5x multiplier ($0.201), consistent with 4K using 2x ($0.268).

- Backend: add 2K size branch in getDefaultImagePrice
- Frontend: update 2K placeholder from 0.134 to 0.201
- Tests: update assertions for new 2K default price

- Add migration 060 to update model_mapping for all antigravity accounts
- Remove gemini-3-pro-image and gemini-3-pro-image-preview mappings
- Add gemini-3.1-flash-image and gemini-3.1-flash-image-preview mappings
- Update frontend usage window to show GImage for new model
- Update isImageGenerationModel to support new model

- useModelWhitelist.ts 添加 gpt-5.3-codex、gpt-5.3-codex-spark
- BulkEditAccountModal.vue 添加 5.3 模型选项与预设按钮（含 5.2→5.3 升级映射）

- 新增 selectedPlatforms prop，从父组件传入选中账号的平台集合
- 根据选中平台过滤模型列表与预设映射按钮，避免误操作
- 混选多平台时显示 amber 警告横幅，提醒用户注意映射适用性
- 仅警告不阻断，保持加法兼容

- resolveDocumentTitle() 新增 titleKey 参数，优先通过 i18n 翻译
- router beforeEach 中将路由 meta.titleKey 传入标题解析函数
- setLocale() 切换语言后同步刷新 document.title

新增 Access Token 输入方式，支持批量粘贴（每行一个）直接创建账号，
无需经过 OAuth 授权流程。
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Change layout from fixed 3-column grid to vertical-first responsive
  columns (1 col for ≤4 items, 2 cols for ≤8, 3 cols for 9+)
- Add short aliases for all known model scope keys (e.g. COpus46, CSon46,
  G3PH, G3F) to reduce badge width
- Display countdown timer directly on each badge (supports h/m/s)
- Retain legacy scope aliases for backward compatibility

- Remove Gemini platform exclusion from model restriction UI in
  Create/Edit account modals (Gemini now supports model_mapping)
- Remove outdated Gemini model passthrough info cards
- Add model_mapping field to GeminiCredentials type
- Extend warmup request interception toggle to Antigravity platform
- Remove redundant try/catch in API key account creation
- Remove noisy gateway.request_completed debug log
- Reorganize Gemini model mapping sections in constants.go

Add claude-sonnet-4-6 to identity injection modelInfoMap and
Antigravity model selector. Add gemini-3.1-pro-high/low to
Antigravity model list and Sonnet 4.6 preset mapping.

Add Gemini model presets to BulkEditAccountModal for bulk model mapping.
Fix AccountStatusIndicator model rate limit grid layout using proper
grid container.

Add a dedicated CheckMixedChannel endpoint that allows the frontend
to pre-validate mixed channel risk before submitting create/update
requests. This improves UX by showing warnings earlier in the flow
instead of only after form submission.

Backend changes:
- Add CheckMixedChannelRequest struct and CheckMixedChannel handler
- Register POST /check-mixed-channel route
- Expose CheckMixedChannelRisk as public method on AdminService
- Simplify Create/Update 409 responses (remove details/require_confirmation)
- Add comprehensive handler tests and stub methods

Frontend changes:
- Add checkMixedChannelRisk API function and TypeScript types
- Refactor CreateAccountModal to precheck before step transition and submission
- Refactor EditAccountModal to precheck before update submission
- Replace pendingPayload pattern with action-based dialog flow

Extract applyInterceptWarmup utility to unify all credential building
call sites:
- Fix upstream account creation missing intercept_warmup_requests write
- Fix apikey edit mode missing else-branch to clear the setting
- Add backend unit test for IsInterceptWarmupEnabled
- Add frontend unit test for credentialsBuilder

The usage progress bar only matched claude-sonnet-4-5 and
claude-opus-4-5-thinking. After upgrading to 4.6, the backend returns
claude-sonnet-4-6/claude-opus-4-6-thinking which didn't match,
causing the Claude usage bar to not display.

- Add claude-sonnet-4-6 and claude-opus-4-6-thinking to the match list
- Rename label from "C4.5" to "Claude" for future-proofing