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

api/config.php

@@ -0,0 +1,22 @@
+<?php
+// API Configuration
+return [
+    'telegram' => [
+        'bot_token' => '123456789:ABCdefGHIjklmNOPQRstuvwxyz', // Replace with your actual bot token from BotFather
+        'channel_id' => 'YOUR_CHANNEL_ID', // Replace with your channel ID (e.g., -100xxxxxxxxxx)
+        'allowed_ips' => [
+            // Add Telegram's IP ranges here for security
+            '149.154.160.0/20',
+            '91.108.4.0/22'
+        ]
+    ],
+    'security' => [
+        'rate_limit' => 30, // requests per minute
+        'max_requests' => 1000 // per hour
+    ],
+    'content' => [
+        'check_interval' => 5, // minutes between checks
+        'max_items' => 10,     // maximum items to post per check
+        'time_window' => 5     // minutes to look back for new content
+    ]
+];