Refactor security scanning and database setup

- Update security scan workflow to utilize a dedicated script for checking secrets, improving detection accuracy.
- Modify database connection setup in multiple scripts to use an environment variable fallback for DATABASE_URL, enhancing flexibility in different environments.

scripts/dev-minimal.js

@@ -51,7 +51,7 @@ exec('docker-compose --version', (error) => {
           shell: isWindows,
           env: {
             ...process.env,
-            DATABASE_URL: 'postgresql://portfolio_user:portfolio_dev_pass@localhost:5432/portfolio_dev?schema=public',
+            DATABASE_URL: process.env.DATABASE_URL || 'postgresql://portfolio_user:portfolio_dev_pass@localhost:5432/portfolio_dev?schema=public',
             REDIS_URL: 'redis://localhost:6379',
             NODE_ENV: 'development'
           }