Add Phase 2 updates to rateLimiter.ts:
- Import and hook in rateLimitMetrics and authHelpers
- Track per-request metrics on allowed/blocked outcomes
- Extract userId and clientIP for metrics
- Extend RateLimiter to pass functionName for metrics context
- Update withRateLimit to utilize new metadata and return values
Consolidate CORS handling by introducing a shared supabase/functions/_shared/cors.ts and migrate edge functions to import from it. Remove inline cors.ts usage across functions, standardize headers (including traceparent and x-request-id), and prepare for environment-aware origins.
Add centralized errorFormatter to convert various error types into readable messages, and apply it across edge functions. Replace String(error) usage with formatEdgeError, update relevant imports, fix a throw to use toError, and enhance logger to log formatted errors. Includes new errorFormatter.ts and widespread updates to 18+ edge functions plus logger integration.
Implement distributed tracing across edge functions:
- Introduce span types and utilities (logger.ts enhancements)
- Replace request tracking with span-based tracing in approval and rejection flows
- Propagate and manage W3C trace context in edge tracking
- Add span visualization scaffolding (spanVisualizer.ts) and admin TraceViewer UI (TraceViewer.tsx)
- Create tracing-related type definitions and support files
- Prepare RPC call logging with span context and retries
Implement orphaned image cleanup, temp refs cleanup, deadlock retry, and lock cleanup. These fixes address critical areas of data integrity, resource management, and system resilience within the submission pipeline.
