# Git Commit Message

refactor: add production features and improve architecture

- Add structured configuration with validation
- Implement Redis connection pooling
- Add database migrations system
- Change API methods: GET /set → POST /set, GET /delete → DELETE /delete
- Add health check endpoint
- Add graceful shutdown and structured logging
- Update frontend for new API methods
- Add open source attribution

migrations/001_initial.sql

@@ -0,0 +1,9 @@
+CREATE TABLE IF NOT EXISTS timezones (
+    user_id TEXT PRIMARY KEY,
+    username TEXT NOT NULL,
+    timezone TEXT NOT NULL,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_timezones_updated_at ON timezones(updated_at);

migrations/002_created_at-updated_at.sql

@@ -0,0 +1,5 @@
+ALTER TABLE timezones 
+ADD COLUMN IF NOT EXISTS created_at TIMESTAMPTZ DEFAULT NOW();
+
+ALTER TABLE timezones 
+ADD COLUMN IF NOT EXISTS updated_at TIMESTAMPTZ DEFAULT NOW();