feat: migrate from Supabase to direct PostgreSQL connection#10
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This major refactor replaces the Supabase client library with direct PostgreSQL connections for improved DDL permissions and database management flexibility. ### Database Infrastructure - **Migration System**: Added comprehensive database migration framework with baseline and incremental migrations - **PostgreSQL Client**: Implemented direct PostgreSQL connection using psycopg2-binary with context managers - **Schema Management**: Created migration runner with proper transaction handling and rollback support ### Updated Database Schema - **Meeting Model**: Added `updated_at` field with automatic timestamp triggers - **Persona System**: Integrated persona management with dedicated database table and CRUD operations - **Automatic Timestamps**: PostgreSQL triggers maintain `updated_at` fields on record modifications ### Repository Layer Rewrite - **Meeting Repository**: Converted all Supabase operations to raw SQL with parameterized queries - **Persona Repository**: New repository for persona management with full CRUD capabilities - **Data Models**: Enhanced Meeting and Persona models with proper datetime handling ### Migration Strategy - **Zero Data Loss**: Safe production deployment with data backfilling and ownership transfers - **Backward Compatibility**: Deprecated API functions maintain compatibility during transition - **Database Migrations**: Applied 003_add_updated_at_to_ymemo.sql successfully with 6 existing records preserved ### Dependencies - **Added**: psycopg2-binary>=2.9.10 for PostgreSQL connectivity - **Removed**: supabase>=2.0.0 client library dependency - **Configuration**: Updated environment handling for POSTGRES_URL connection string ### Testing & Documentation - **Test Suite**: All 275 tests pass with database independence (no PostgreSQL connection required) - **Documentation**: Updated CLAUDE.md with PostgreSQL configuration, migration commands, and architecture details - **Configuration**: Added comprehensive database operation commands and troubleshooting guide 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
🧪 YMemo CI/CD Results✅ Tests: success 📊 Test Summary
🎯 Quality StandardsYMemo maintains enterprise-grade quality with:
🎉 All systems go! This PR is ready for review. |
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Summary
This major refactor replaces the Supabase client library with direct PostgreSQL connections for improved DDL permissions and database management flexibility.
• Database Infrastructure: Added comprehensive migration framework with baseline and incremental migrations
• PostgreSQL Client: Implemented direct connection using psycopg2-binary with context managers and transaction handling
• Schema Enhancement: Added
updated_atfield to Meeting model with automatic timestamp triggers• Repository Rewrite: Converted all Supabase operations to raw SQL with parameterized queries
• Persona System: Integrated persona management with dedicated database table and CRUD operations
Migration Details
supabase>=2.0.0withpsycopg2-binary>=2.9.10Test Coverage
Test plan
🤖 Generated with Claude Code