a2bbc7345b
- Implement PostgresUserRepository with full CRUD operations - Support all query methods (by_id/email/username/token) - Use psycopg2 with RealDictCursor for clean mapping - Create initial schema migration (users/workspaces/members/invitations) - Add database indexes for performance - Setup foreign key constraints for data integrity - Include migration guide and rollback instructions - Add psycopg2 dependency Phase 4 Task 28/68 completed