- Fix inverted Claude OAuth utilization (remaining, not used)
- Add hasUtilization() guard to prevent false exhaustion from empty responses
- Centralize anthropic-version into CLAUDE_CONFIG.apiVersion
- Add parseDate() for safe date validation in quota cache
- Batch background refresh with MAX_CONCURRENT_REFRESHES=5
- Move setModelUnavailable to after all accounts exhausted, not first 429
- Extract safePercentage() to shared utils (dedup)
- Use isRecord() type guard in usage API route
- Exclude binary files from Tailwind v4 source scanning
- Move setModelUnavailable from per-account loop to all-accounts-exhausted path
- Clear model unavailability on successful fallback
- Add in-memory quota cache with background refresh (5min active, 20min exhausted)
- Integrate quota cache in account selection to skip exhausted accounts
- Mark accounts as exhausted from 429 when no cached quota data exists
- Populate quota cache from dashboard usage endpoint
isModelAllowedForKey() existed in src/lib/db/apiKeys.ts but was never
called anywhere. API keys with allowedModels restrictions could access
any model through any endpoint.
Changes:
- Add shared enforceApiKeyPolicy() middleware (model restriction + budget)
- Wire it into chat handler (replacing inline budget-only check)
- Wire it into all /v1/* endpoints: embeddings, images/generations,
audio/speech, audio/transcriptions, moderations, rerank
- Wire it into provider-specific endpoints: /v1/providers/[provider]/embeddings,
/v1/providers/[provider]/images/generations
The middleware checks:
1. Model restriction — if key has allowedModels, verify the model is permitted
2. Budget limit — if key has budget configured, verify it hasn't been exceeded
Fixes#130
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