feat: Add comprehensive documentation suite and reorganize project structure

- Created complete documentation in docs/ directory
- Added PROJECT_OVERVIEW.md with feature highlights and getting started guide
- Added ARCHITECTURE.md with system design and technical details
- Added SECURITY.md with comprehensive security implementation guide
- Added DEVELOPMENT.md with development workflows and best practices
- Added DEPLOYMENT.md with production deployment instructions
- Added API.md with complete REST API documentation
- Added CONTRIBUTING.md with contribution guidelines
- Added CHANGELOG.md with version history and migration notes
- Reorganized all documentation files into docs/ directory for better organization
- Updated README.md with proper documentation links and quick navigation
- Enhanced project structure with professional documentation standards

f_core/config.keys.php

@@ -0,0 +1,21 @@
+<?php
+defined('_ISVALID') or header('Location: /error');
+
+/* IPQualityScore check */
+$cfg['ipqualityscore']     = false;
+$cfg['ipqualityscore_api'] = '';
+
+/* MaxMind country detection */
+$cfg['maxmind']         = false;
+$cfg['maxmind_db']      = '';
+$cfg['maxmind_country'] = false; //or an array('IN', 'PK');//block these countries from posting comments
+
+/* Akismet spam check */
+$cfg['akismet']         = false;
+$cfg['akismet_api']     = '';
+$cfg['akismet_site']    = $cfg['main_url'];
+$cfg['akismet_country'] = false; //or an array('IN', 'PK');//check only these countries for spam comments
+
+/* proxycheck-php */
+$cfg['proxycheck']     = false;
+$cfg['proxycheck_api'] = '';