Introduces the building blocks for the thinking-signature pool feature
without activating any runtime behavior. Nothing uses these new types
yet — Phase 3 will wire them into the retry loops.
New package internal/service/signature adds:
- SignaturePool interface + Bucket helpers (oauth shared / apikey per-account)
- ReplaceThinkingSignaturesInBody / ReplaceThinkingSignaturesInClaudeRequest
pure functions that cycle through pool entries for M>N replacements
- Harvester io.ReadCloser decorator for SSE + non-streaming JSON that
extracts content_block.signature fields best-effort into the pool
- 1h soft TTL constant for lazy expiry
New repository adapter internal/repository/signature_pool_cache.go
implements Redis ZSET storage with a single Lua script handling atomic
add + lazy expiry cleanup + capacity trim. Registered via
ProvideSignaturePool in the wire ProviderSet.
Settings extension: RectifierSettings gains a SignaturePoolSize int
field (0 = pool disabled / sticks with strip behavior; >0 = pool replace
is active). Threaded through service view, DTO, and handler GET/PUT
paths with bounds validation (max 1000).
ctxkey.IsSignatureRectifyRetry added so the harvester can later skip
ingesting signatures from retry requests we ourselves injected.
- QuotaLimit changed to *int64 (null=unlimited, >0=limited)
- Add reset-usage endpoint (POST /admin/settings/web-search-emulation/reset-usage)
- Show quota usage in header always (collapsed and expanded)
- Add reset quota button in expanded provider view
- Quota input: empty=unlimited with ∞ placeholder, must be >0 if set
- Add email verification hint on balance notify card
The buttons were hidden because v-if only checked provider.api_key,
which is always empty for saved providers (backend sanitizes it).
Now also checks api_key_configured. Copy button is disabled when
no actual key is available (only configured placeholder shown).
- Add BalanceLowNotifyRechargeURL to admin PUT response (fixes save-then-stale)
- Add ?? 1 guard for account_rate_multiplier in UsageTable else branch
- Downgrade high-frequency notify logs from Info to Debug
- Extract "Sub2API" magic string to defaultSiteName constant
- Quota alert email now shows account ID and platform
- Balance low email includes a "Top Up Now" button when recharge URL is configured
- New setting: balance_low_notify_recharge_url in admin settings
The field was present in SystemSettings response DTO and service layer
but missing from:
- UpdateSettingsRequest (admin handler) - saves were silently ignored
- GET/PUT response mapping in admin handler
- UpdateSettingsRequest (non-admin dto)
This caused the toggle to always revert to off after saving.
- Change balance_notify_extra_emails and account_quota_notify_emails
from []string to []NotifyEmailEntry{email, disabled, verified}
- Add per-email enable/disable toggle for both user and admin notifications
- Add PUT /user/notify-email/toggle API endpoint
- Fix critical bug: API key auth cache snapshot missing balance notify
fields (Email, Username, BalanceNotifyEnabled, etc.), causing
notifications to never fire on cached request paths
- Bump cache snapshot version 3→4 to invalidate stale entries
- Add SQL migration 104 to convert old format data
- Backward compatible: parseNotifyEmails auto-detects old/new format
- User balance notify: max 3 emails (primary + 2 extra)
- Admin quota notify: unlimited emails, each with toggle
Balance low notification only supports fixed USD amount threshold.
Percentage threshold is a quota concept, not applicable to balance.
Reverted threshold_type from admin settings, user profile, and all
backend/frontend layers. DB fields (balance_notify_threshold_type,
total_recharged) retained for potential future quota use.
- Add threshold_type field (fixed/percentage) to system and user settings
- Add total_recharged field to users table, auto-incremented on balance credit
- Percentage mode: effective threshold = total_recharged × percentage / 100
- User-level threshold_type inherits from system default when not set
- Update admin settings UI with radio selector (fixed amount / percentage)
- Migration: 102_add_balance_notify_threshold_type.sql
- Remove Priority field, auto load-balance by quota remaining
- Replace QuotaRefreshInterval (daily/weekly/monthly) with SubscribedAt
(subscription date, monthly lazy refresh via Redis TTL)
- Add collapsible provider cards, API key show/copy, usage progress bar
- Add test endpoint (POST /web-search-emulation/test) bypassing quota
- Wire WebSearchManagerBuilder on startup (was never called before)
- Fix nextMonthlyReset day-of-month overflow (Jan 31 → Feb 28)
- Fix non-deterministic sort in selectByQuotaWeight
- Map ProxyID in builder for provider-level proxy tracking
- Fix frontend timezone drift in subscribed_at date picker
- Fix provider deletion index shift for expandedProviders state
Inject web search capability for Claude Console (API Key) accounts that
don't natively support Anthropic's web_search tool. When a pure
web_search request is detected, the gateway calls Brave Search or Tavily
API directly and constructs an Anthropic-protocol-compliant SSE/JSON
response without forwarding to upstream.
Backend:
- New `pkg/websearch/` SDK: Brave and Tavily provider implementations
with io.LimitReader, proxy support, and Redis-based quota tracking
(Lua atomic INCR + TTL, DECR rollback on failure)
- Global config via `settings.web_search_emulation_config` (JSON) with
in-process cache + singleflight, input validation, API key merge on
save, and sanitized API responses
- Channel-level toggle via `channels.features_config` JSONB column
(DB migration 101)
- Account-level toggle via `accounts.extra.web_search_emulation`
- Request interception in `Forward()` with SSE streaming response
construction using json.Marshal (no manual string concatenation)
- Manager hot-reload: `RebuildWebSearchManager()` called on config save
and startup via `SetWebSearchRedisClient()`
- 70 unit tests covering providers, manager, config validation,
sanitization, tool detection, query extraction, and response building
Frontend:
- Settings → Gateway tab: Web Search Emulation config card with global
toggle, provider list (add/remove, API key, priority, quota, proxy)
- Channels → Anthropic tab: web search emulation toggle with global
state linkage (disabled when global off)
- Account Create/Edit modals: web search emulation toggle for API Key
type with Toggle component
- Full i18n coverage (zh + en)
- Sync cc_version in x-anthropic-billing-header with the fingerprint
User-Agent version, preserving the message-derived suffix
- Implement xxHash64-based CCH signing to replace the cch=00000
placeholder with a computed hash
- Add admin toggle (enable_cch_signing) under gateway forwarding settings,
disabled by default
- EasyPay redirect passes all configured CIDs (cidAlipay, cidWxpay) comma-separated
- Payment redirect opens in new window instead of current window redirect
- Order action column uses styled icon buttons with tooltip
- Pending order limit error returns i18n-friendly message with metadata
- Cancel order rate limit feature (ported from sub2apipay) with rolling/fixed window modes
- Admin settings UI for cancel rate limit configuration
- Fix provider dialog triggering unintended settings save on open
- Provider save now correctly calls saveSettings after provider update
- API client interceptor forwards reason and metadata fields for structured error handling
- Skip UpdatePaymentConfig when no payment fields provided (prevents wipe)
- Remove unused defaultMinRechargeAmount/defaultMaxRechargeAmount constants
- Fix mergeConfig comment to match actual behavior
- Backend: payment fields added to GET/PUT /admin/settings (full replace)
- Frontend: single API call for all settings (no separate payment config API)
- Payment page: show "充值未开放" when no payment methods available
- Pending order check when disabling provider
Add maximum Claude Code version limit to complement the existing minimum
version check. Refactor the version cache from single-value to unified
bounds struct (min+max) with a single atomic.Value and singleflight group.
- Backend: new constant, struct field, cache refactor, validation (semver
format + cross-validation max >= min), gateway enforcement, audit diff
- Frontend: settings UI input, TypeScript types, zh/en i18n
- Add CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1 to all Claude Code
tutorials on /keys page (unix/cmd/powershell/vscode settings.json)
Move 529 overload cooldown configuration from config file to admin
settings UI. Adds an enable/disable toggle and configurable cooldown
duration (1-120 min) under /admin/settings gateway tab, stored as
JSON in the settings table.
When disabled, 529 errors are logged but accounts are no longer
paused from scheduling. Falls back to config file value when DB
is unreachable or settingService is nil.
Recovers features lost during 0.1.91->0.1.95 merge (0.1.92-0.1.94
customizations were skipped because main branch was not updated).
Recovered features:
- Antigravity 403 forbidden/validation/ban status detection and display
- Subscription tier badge in account list
- Client affinity scheduling for Anthropic accounts
- Sora async task API and GDrive storage backend
- Swipe-to-select for admin tables
- OpenAI passthrough account selection fix
- Various quota and usage enhancements
Add a system-wide "Backend Mode" that disables user self-registration
and self-service while keeping admin panel and API gateway fully
functional. When enabled, only admin can log in; all user-facing
routes return 403.
Backend:
- New setting key `backend_mode_enabled` with atomic cached reads (60s TTL)
- BackendModeUserGuard middleware blocks non-admin authenticated routes
- BackendModeAuthGuard middleware blocks registration/password-reset auth routes
- Login/Login2FA/RefreshToken handlers reject non-admin when enabled
- TokenPairWithUser struct for role-aware token refresh
- 20 unit tests (middleware + service layer)
Frontend:
- Router guards redirect unauthenticated users to /login
- Admin toggle in Settings page
- Login page hides register link and footer in backend mode
- 9 unit tests for router guard logic
- i18n support (en/zh)
27 files changed, 833 insertions(+), 17 deletions(-)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
erio