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_modules/m_frontend/m_donations/public/donate.php

@@ -0,0 +1,24 @@
+<?php
+define('_ISVALID', true);
+include_once '../../../f_core/config.core.php';
+require_once __DIR__ . '/../config/config.php';
+
+use Donations\DonationHandler;
+
+// Get streamer information
+$streamer_id = $_GET['streamer_id'] ?? 0;
+$sql = "SELECT username, display_name FROM users WHERE user_id = ?";
+$streamer = db()->getRow($sql, [$streamer_id]);
+
+if (!$streamer) {
+    handle_error('Invalid streamer', 404);
+}
+
+// Initialize donation handler
+$donation_handler = new DonationHandler();
+
+// Load view
+view('donation_form', [
+    'streamer' => $streamer,
+    'config' => $square_config
+]);