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CI 的 pnpm install --frozen-lockfile 需要 lock 文件同步更新

- Add `sort_order` field to groups table with migration
- Add `PUT /api/v1/admin/groups/sort-order` API for batch update
- Implement drag-and-drop UI using vue-draggable-plus
- All queries now order groups by sort_order
- Add i18n support (en/zh) for sort-related UI text
- Update test stubs to satisfy new interface methods

- avoid panic by using safe UUID prefix truncation in Gemini digest fallback logs\n- remove unconditional Antigravity 429 full-body debug logs and honor log truncation config\n- align Antigravity quick preset mappings to opus 4.6-thinking targets only\n- restore scope rate-limit aggregation/output in ops availability stats

feat(antigravity): comprehensive enhancements - model mapping, rate limiting, scheduling & ops

1. Frontend: replace hardcoded antigravityDefaultMappings with async
   fetch from GET /admin/accounts/antigravity/default-model-mapping,
   eliminating the duplicate data source that caused frontend/backend
   mapping inconsistency.

2. Backend: convert handleSmartRetry and antigravityRetryLoop from
   standalone functions to AntigravityGatewayService methods, enabling
   Redis cache sync (updateAccountModelRateLimitInCache) after both
   rate-limit write paths — long-delay branch and retry-exhausted branch.

Remove extra blank line that caused golangci-lint gofmt check to fail.

- Add GetAccessToken upstream branch tests (success/failure/empty/nil)
- Add mapAntigravityModel wildcard-target-equals-request edge case tests
- Add upstream account smart retry test case
- Add GeminiMessagesCompatService custom model_mapping and empty model tests

- GetAccessToken: add upstream branch to read api_key from credentials
- shouldTriggerAntigravitySmartRetry: relax check from IsOAuth to Platform-based
- isModelSupportedByAccount/WithContext: replace IsAntigravityModelSupported
  whitelist with mapAntigravityModel for unified scheduling/forwarding logic
- mapAntigravityModel: fix edge case where wildcard target equals request model
- Update tests for new behavior and add custom model_mapping test cases

Key changes:
- Upgrade model mapping: Opus 4.5 → Opus 4.6-thinking with precise matching
- Unified rate limiting: scope-level → model-level with Redis snapshot sync
- Load-balanced scheduling by call count with smart retry mechanism
- Force cache billing support
- Model identity injection in prompts with leak prevention
- Thinking mode auto-handling (max_tokens/budget_tokens fix)
- Frontend: whitelist mode toggle, model mapping validation, status indicators
- Gemini session fallback with Redis Trie O(L) matching
- Ops: enhanced concurrency monitoring, account availability, retry logic
- Migration scripts: 049-051 for model mapping unification

feat(frontend): show seconds in rate limit time display

fix(antigravity): reduce 429 fallback cooldown from 5min to 30s

fix(antigravity): auto-fix max_tokens <= budget_tokens causing 400 error

chore: add .gitattributes to enforce LF line endings

Change formatTime() to include seconds (HH:MM:SS) instead of only
hours and minutes (HH:MM). This gives users more precise information
about when rate limits will reset.

The default fallback cooldown when rate limit reset time cannot be
parsed was 5 minutes, which is too aggressive and causes accounts
to be unnecessarily locked out. Reduce to 30 seconds for faster
recovery. Config override still works (unit remains minutes).

When extended thinking is enabled, Claude API requires max_tokens >
thinking.budget_tokens. If misconfigured, this auto-adjusts max_tokens
to budget_tokens + 1000 instead of returning a 400 error.

- Add ensureMaxTokensGreaterThanBudget helper function
- Extract Gemini25FlashThinkingBudgetLimit constant (24576)
- Log adjustment for debugging

Ensures consistent line endings for SQL migration files, Go source,
shell scripts, YAML configs, and Dockerfiles. Fixes checksum mismatches
on Windows where CRLF line endings cause migration hash differences.

- OAuth 账号：使用完整的 DefaultBetaHeader 和 Claude Code 客户端 headers
- API Key 账号：使用 APIKeyBetaHeader（不含 oauth beta）

- 将筛选器和操作按钮合并到同一行显示
- 筛选器在左侧，操作按钮在右侧
- 添加响应式支持，窄屏时自动换行并简化按钮文字

用户 Dashboard 的 Token 使用趋势图表现在显示 Input/Output/Cache 三种类型，
并在 Tooltip 中显示 Actual 和 Standard 价格，与管理员页面保持一致。

将 /api/health 改为 /health，与后端实际注册的路由一致

在敏感字段检测中添加白名单，排除 API 参数和用量统计字段：
- max_tokens, max_completion_tokens, max_output_tokens
- completion_tokens, prompt_tokens, total_tokens
- input_tokens, output_tokens
- cache_creation_input_tokens, cache_read_input_tokens

这些字段名虽然包含 "token" 但只是数值参数，不应被脱敏处理。

将错误透传规则按钮从自动刷新按钮前面移动到后面

feat: implement account & proxy import/export with migration-ready JSON bundles

移除响应阶段的工具名/schema/description 转换逻辑，修复第三方工具调用时
工具名被错误转换的问题（如 Task → task）。

移除内容：
- 工具名相关正则变量（toolPrefixRe, toolNameBoundaryRe 等）
- openCodeToolOverrides 和 claudeToolNameOverrides 映射表
- 工具名转换函数（normalizeToolNameForClaude, normalizeToolNameForOpenCode 等）
- 响应体工具名替换函数（replaceToolNamesInText, replaceToolNamesInResponseBody 等）
- 参数名转换函数（normalizeParamNameForOpenCode, rewriteParamKeysInValue）
- 工具描述清理函数（sanitizeToolDescription）
- 输入 schema 转换函数（normalizeToolInputSchema）
- 模型 ID 正则替换函数（replaceModelIDInText）

保留内容：
- 系统提示词清理（sanitizeSystemText）
- Claude Code 指纹 headers 处理
- 模型 ID 映射（通过 JSON 对象操作）

fix(兼容): 将 Kimi cached_tokens 映射到 Claude 标准 cache_read_input_tokens