[FEAT] Update the database for the scores. And follow the new file format

AGENTS.md

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+# AGENTS.md - Development Guidelines
+
+This file contains essential information for AI agents working on this codebase.
+
+## Project Overview
+
+PHP website for "Harmonie de Montpellier-Jacou" (music band) with a Vue.js 2 frontend for score management.
+- **Backend**: PHP with MySQL (legacy codebase)
+- **Frontend**: Vue.js 2 + Bootstrap Vue (in `frontend/score/`)
+- **API**: RESTful PHP API in `api/` directory
+
+## Build Commands
+
+### Frontend (Vue.js)
+```bash
+cd frontend/score
+npm install
+npm run serve      # Development server
+npm run build      # Production build
+npm run lint       # ESLint check
+```
+
+### PHP
+No build step required. Deploy to PHP-enabled web server.
+
+## Testing
+
+**No test framework configured.**
+
+To add tests:
+- **PHP**: Consider PHPUnit
+- **Vue**: Add Jest or Vitest via Vue CLI
+
+Run single test (when configured):
+```bash
+# Example for Jest (not yet configured)
+npm test -- --testNamePattern="test name"
+```
+
+## Code Style Guidelines
+
+### PHP
+- Use `<?php` opening tags (avoid short `<?` tags for consistency)
+- Classes: PascalCase (e.g., `Score`, `Database`)
+- Methods: camelCase (e.g., `readScore`, `getEntryName`)
+- Variables: snake_case or camelCase (be consistent within files)
+- Indent: 3 spaces (legacy style) - maintain consistency with surrounding code
+- Place opening braces on same line as class/function declaration
+- Use `include_once` for required files
+- **Note**: Uses legacy MySQL functions (consider upgrading to PDO/MySQLi)
+
+### JavaScript/Vue
+- ESLint configuration in `package.json`:
+  - Extends: `plugin:vue/essential`, `eslint:recommended`
+  - Parser: `babel-eslint`
+- Use ES6+ features (async/await, arrow functions)
+- Components: PascalCase
+- Data properties: camelCase
+- Use 2-space indentation
+- Semicolons required
+
+### General
+- UTF-8 encoding for all files
+- French language for user-facing content
+- Maintain GPL v2 license headers in PHP files
+
+## File Organization
+
+```
+/
+├── api/              # REST API endpoints
+│   ├── config/       # Database configuration
+│   ├── objects/      # Data models
+│   └── score/        # API endpoints
+├── frontend/score/   # Vue.js application
+│   ├── src/          # Source code
+│   └── public/       # Static assets
+├── Scripts/          # PHP page controllers
+├── fpdf/             # PDF generation library
+├── Imgs/             # Image assets
+├── Textes/           # Text content files
+└── index.php         # Main entry point
+```
+
+## Database
+
+MySQL database connection configured in `api/config/database.php`:
+- Uses legacy `mysql_*` functions
+- Database name: `ohmj2`
+- Tables: `repertoire` (for scores)
+
+## Error Handling
+
+- PHP: Uses `@` error suppression operator in some places
+- Vue: Uses try/catch with console.log for errors
+- Return HTTP 200 on success in API responses
+
+## Security Notes
+
+- API uses `Access-Control-Allow-Origin: *` (CORS enabled for all)
+- SQL queries use string concatenation (vulnerable to SQL injection)
+- Database credentials stored in plain text in `api/config/database.php`
+- Sanitize user inputs before database queries
+
+## Git
+
+- No CI/CD configured
+- Commit to main branch
+- Standard `.gitignore` for Node.js projects
+
+## Dependencies
+
+### Frontend
+- Vue 2.6.11
+- Bootstrap Vue 2.17.3
+- Axios 0.21.0
+- Vue CLI 4.5.0
+
+### PHP
+- FPDF library for PDF generation
+- MySQL extension (legacy)
+
+## Notes
+
+- This is a legacy codebase with mixed coding styles
+- Prefer consistency with existing code over strict style enforcement
+- Site targets French-speaking users
+- Production URL: `ohmj2.free.fr`
+
+## Temporary Work Files
+
+- Use `_builds/` directory for temporary scripts and working files
+- Only `scripts/convert_final_v2.js` should be kept in the scripts folder (committed to git)
+- CSV output files belong in `_builds/`