feat(docs): update documentation and disable Ask AI feature

Major documentation updates including:
- Add comprehensive code examples page
- Add video tutorial to homepage
- Update Docker deployment instructions for v0.6.0
- Temporarily disable Ask AI feature
- Add table border styling
- Update site version to v0.6.x

BREAKING CHANGE: Ask AI feature temporarily disabled pending launch

docs/md_v2/ask_ai/index.html

@@ -36,7 +36,7 @@
             <div id="chat-input-area">
                 <!-- Loading indicator for general waiting (optional) -->
                 <!-- <div class="loading-indicator" style="display: none;">Thinking...</div> -->
-                <textarea id="chat-input" placeholder="Ask about Crawl4AI..." rows="2"></textarea> 
+                <textarea id="chat-input" placeholder="We will roll out this feature very soon." rows="2" disabled></textarea> 
                 <button id="send-button">Send</button>
             </div>
         </main>