cb6e4e7dcb
- Updated README.md to include instructions for guided installation on webspace without shell access. - Enhanced installationshandbuch.md with detailed steps for using the guided installer. - Modified saas-app/README.md to summarize the installation process using the new installer. - Generated SQL migration bundle now includes timestamp for better tracking. - Introduced public/install/index.php as the entry point for the guided installer. - Updated public/index.php to reflect changes in installation steps and added links to the installer. - Refactored migration bundle generation and SQL execution scripts for improved error handling and modularity. - Implemented session-based CSRF protection in the installer. - Added form handling for environment variable configuration and migration execution in the installer. - Created a user-friendly HTML interface for the installer with status messages and error handling.