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_templates/tpl_watch.tpl

@@ -0,0 +1,36 @@
+<div class="watch-page">
+        <div class="video-player">
+            <video controls width="100%" height="400">
+                <source src="{$video.file_path}" type="video/mp4">
+                Your browser does not support the video tag.
+            </video>
+        </div>
+        
+        <div class="video-info">
+            <h1>{$video.file_title}</h1>
+            <div class="video-meta">
+                <span class="views">{$video.file_views} views</span>
+                <span class="date">{$video.upload_date}</span>
+                <div class="actions">
+                    <button class="btn-like">👍 Like</button>
+                    <button class="btn-dislike">👎 Dislike</button>
+                    <button class="btn-share">📤 Share</button>
+                </div>
+            </div>
+            
+            <div class="video-description">
+                <p>{$video.file_description}</p>
+            </div>
+        </div>
+        
+        <div class="comments-section">
+            <h3>Comments</h3>
+            <div class="comment-form">
+                <textarea placeholder="Add a comment..."></textarea>
+                <button>Post Comment</button>
+            </div>
+            <div class="comments-list">
+                {$comments}
+            </div>
+        </div>
+    </div>