Engineer Cross-Region Supabase Edge Function Deployment for Low-Latency Auth

[temma02]

Description

Implement cross-region deployment of Supabase Edge Functions for authentication operations, reducing auth latency for geographically distributed users by serving auth from the nearest region.

Requirements and Context

• Performance: Auth latency must be reduced for distributed users
• Testing: Test edge function deployment and routing
• Documentation: Document the cross-region architecture

Suggested Execution

Branch: feat/issue-114-supabase-edge-cross-region-auth

Implement Changes

• Configure cross-region deployment for auth-related Supabase Edge Functions
• Route auth requests to the nearest healthy region
• Handle region failover for auth operations
• Verify auth state consistency across regions

Test and Commit

• Test edge function deployment configuration
• Test regional routing and failover
• Document the cross-region architecture

Example Commit Message

feat(auth): deploy cross-region Supabase edge functions for low-latency auth

- Configure cross-region edge function deployment
- Route auth to nearest healthy region
- Handle regional failover

Guidelines

• Ensure auth state consistency across regions
• Provide regional failover
• Measure latency improvement