Enhanced README.md with professional structure and detailed documentation: Content improvements:

• Added status badges (PHP version, license, status, migration progress)
• Added Quick Start section with 5-step installation guide
• Added detailed Installation section with 2 methods (manual + setup.php)
• Expanded System Requirements with PHP extensions
• Fixed typo: "Ngnix" → "Nginx"

Feature documentation:

• Categorized Features section (Core, Content Management, E-Commerce, SEO)
• Added detailed Project Structure with file descriptions
• Added Modernization Status section (50% complete, 2106+ SQL queries secured)
• Expanded Tech Stack with security details

Development guidelines:

• Enhanced Coding Standards with complete PHP code examples
• Added 8 mandatory function verbs (get, set, add, update, delete, is, check, filter)
• Added Security Best Practices with correct/incorrect examples
• Added Variable and Constant naming conventions
• Added Code Style examples with type declarations

Additional sections:

• Contributing Guidelines with Git workflow
• Expanded License section with GPL v3 details
• Support section with documentation/issues/forum links
• Professional formatting with emojis and clear structure

Technical improvements:

• Modern GitHub README best practices
• Better readability and scanability
• Comprehensive developer onboarding documentation
• Clear code examples for SLAED standards

Impact:

• Much more professional and comprehensive documentation
• Easier onboarding for new contributors
• Clear coding standards and security guidelines
• Better project presentation on GitHub

• check_compat.php: Translate comment to English
• changelog.php: Translate error message to English

• Info files: Language name standardization (english→en, german→de, french→fr, etc.)
• Admin modules: Code improvements and consistency fixes
• Core system: Security and user management enhancements
• Config: Log file updates

Fixed configuration persistence issues in the changelog module where GitHub repository and token values were not being saved correctly. Changes in admin/modules/changelog.php:

• Fixed global variable: $admin_file → $aroute (consistency)
• Fixed getVar() type for GitHub fields: 'var' → 'text'
• The 'var' type uses isVar() which only allows a-zA-Z0-9_-
• Repository names like 'SLAED-CMS-6.3-Pro' contain dots, which were rejected
• GitHub tokens contain underscores and were being filtered incorrectly
• Type 'text' uses save_text() which preserves special characters

Issue details:

• getVar() with type 'var' calls isVar() function
• isVar() pattern: /[^a-zA-Z0-9_\-]/ rejects dots and many characters
• 'SLAED-CMS-6.3-Pro' was converted to '0' due to dot rejection
• GitHub tokens 'ghp_...' were also filtered incorrectly

Solution:

• Use type 'text' for github_owner, github_repo, and github_token
• save_text() preserves necessary characters while still sanitizing input
• Configuration now saves correctly with full repository names and tokens

This fix enables proper GitHub API integration configuration.