chore: Release v0.3.21 - Auth database schema complete

- Added password_hash column to both PostgreSQL and SQLite schemas
- Added database migrations for existing tables
- Updated version to 0.3.21

Author: jonathanpeterwu

src/cli/index.ts

@@ -47,7 +47,7 @@ import Database from 'better-sqlite3';
 import { join } from 'path';
 import { existsSync, mkdirSync } from 'fs';
 
-const VERSION = '0.3.20';
+const VERSION = '0.3.21';
 
 // Check for updates on CLI startup
 UpdateChecker.checkForUpdates(VERSION, true).catch(() => {