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/f_classes/class.videobrowse.php

@@ -0,0 +1,80 @@
+<?php
+defined('_ISVALID') or exit;
+
+class VVideoBrowse {
+    public static function getLatestVideos($limit = 20, $page = 1) {
+        global $class_database;
+        
+        $offset = ($page - 1) * $limit;
+        $sql = "SELECT vf.*, au.usr_user as username 
+                FROM db_videofiles vf 
+                LEFT JOIN db_accountuser au ON vf.usr_id = au.usr_id 
+                WHERE vf.privacy = 'public' AND vf.approved = 1 
+                ORDER BY vf.upload_date DESC 
+                LIMIT $limit OFFSET $offset";
+                
+        return $class_database->execute($sql);
+    }
+    
+    public static function searchVideos($query, $limit = 20) {
+        global $class_database;
+        
+        $query = $class_database->escape($query);
+        $sql = "SELECT vf.*, au.usr_user as username 
+                FROM db_videofiles vf 
+                LEFT JOIN db_accountuser au ON vf.usr_id = au.usr_id 
+                WHERE (vf.file_title LIKE '%$query%' OR vf.file_description LIKE '%$query%') 
+                AND vf.privacy = 'public' AND vf.approved = 1 
+                ORDER BY vf.upload_date DESC 
+                LIMIT $limit";
+                
+        return $class_database->execute($sql);
+    }
+    
+    public static function getVideosByCategory($category_id, $limit = 20) {
+        global $class_database;
+        
+        $sql = "SELECT vf.*, au.usr_user as username 
+                FROM db_videofiles vf 
+                LEFT JOIN db_accountuser au ON vf.usr_id = au.usr_id 
+                WHERE vf.file_category = ? AND vf.privacy = 'public' AND vf.approved = 1 
+                ORDER BY vf.upload_date DESC 
+                LIMIT $limit";
+                
+        return $class_database->execute($sql, [$category_id]);
+    }
+    
+    public static function renderVideoGrid($videos) {
+        if (empty($videos)) {
+            return '<div class="no-videos">No videos found</div>';
+        }
+        
+        $html = '<div class="video-grid">';
+        foreach ($videos as $video) {
+            $thumb = $video['file_thumbnail'] ?: '/f_scripts/fe/img/default-thumb.jpg';
+            $title = htmlspecialchars($video['file_title']);
+            $username = htmlspecialchars($video['username'] ?: 'Unknown');
+            $duration = $video['file_duration'] ?: '00:00';
+            $views = number_format($video['file_views'] ?: 0);
+            
+            $html .= "
+            <div class=\"video-item\">
+                <div class=\"video-thumb\">
+                    <img src=\"$thumb\" alt=\"$title\">
+                    <span class=\"duration\">$duration</span>
+                </div>
+                <div class=\"video-info\">
+                    <h3><a href=\"/watch/{$video['file_key']}\">{$title}</a></h3>
+                    <p class=\"video-meta\">
+                        <span class=\"username\">$username</span>
+                        <span class=\"views\">$views views</span>
+                    </p>
+                </div>
+            </div>";
+        }
+        $html .= '</div>';
+        
+        return $html;
+    }
+}
+?>