- Add db.php with PDO singleton, migration runner, and all helper functions
- Add migrations/001_initial_schema.sql (full schema)
- Add migrations/002_import_json.php (one-time JSON → DB importer)
- Add _incl/switch_tenant.php POST endpoint for tenant/centro switching
- Update tools.auth.php: DB-backed login, cookie auth, session reload, init_active_centro()
- Update all sysadmin pages (users, centros, aularios, invitations, reset_password) to use DB
- Update aulatek/index.php, aulario.php, supercafe.php, supercafe_edit.php to use DB
- Update aulatek/comedor.php and api/comedor.php to use DB
- Update aulatek/paneldiario.php: aulario config + comedor data from DB
- Update aulatek/proyectos.php: aulario config + sharing metadata from DB
- Update club/cal.php, index.php, edit_data.php, upload/upload.php to use DB
- Update account/index.php: rich profile, tenant list, aula list, session info, permissions
- Update pre-body.php account dropdown: shows active org + inline tenant switcher
- Update DATA_STRUCTURE.md to document DB approach and migration system
Co-authored-by: naielv <109038805+naielv@users.noreply.github.com>
- Added a new tools.security.php file containing functions for sanitizing filenames, paths, and user inputs to prevent directory traversal and XSS attacks.
- Updated various files to utilize the new sanitization functions (Sf, Si) for user inputs and file operations, ensuring safer handling of data.
- Improved HTML output safety by applying htmlspecialchars to user-generated content in pre-body.php, cal.php, and other relevant files.
- Refactored user authentication and data retrieval processes in tools.auth.php and _login.php to enhance security and maintainability.
- Ensured consistent use of sanitization functions in API endpoints and admin functionalities to mitigate potential security vulnerabilities.
