- Renamed MYSQL_ROOT_PASSWORD to DB_ROOT_PASSWORD and MYSQL_PASSWORD to DB_PASSWORD for consistent naming
- Updated docker-compose.yml to map DB_* variables to MySQL container's expected MYSQL_* format
- Removed redundant DATABASE_URL variable since individual DB_* variables are now used
- Added default values for DB_USER, DB_NAME, DB_HOST, and DB_PORT in docker-compose.yml
- Updated all documentation files to reference new standar
- Changed admin frontend port from 3000 to 3300 across all configuration files
- Changed API backend port from 3001 to 3301 across all configuration files
- Updated health check endpoints to use new ports in CI/CD workflow
- Modified documentation and deployment guides to reflect new port numbers
- Updated Caddy and Nginx reverse proxy configurations to use new ports
- Created new LOCAL_TESTING.md with detailed instructions for setting up local development environment
- Added step-by-step setup guide covering Docker installation, environment configuration, and common commands
- Included troubleshooting section with solutions for common issues like port conflicts and build failures
- Added development workflow guidelines and testing checklist for quality assurance
- Documented performance tips and best practices for Docker
