feat: Complete chat system implementation and password reset enhancement

- Add comprehensive chat system with modern UI design
- Implement admin-based password reset system
- Fix template syntax errors and 500 server errors
- Add chat routes, API endpoints, and database models
- Enhance user interface with Tailwind CSS card-based design
- Implement community guidelines and quick action features
- Add responsive design for mobile and desktop compatibility
- Create support chat functionality with admin integration
- Fix JavaScript inheritance in base template
- Add database migration for chat system tables

Features:
✅ Modern chat interface with room management
✅ Admin-based password reset workflow
✅ Real-time chat with mobile app support
✅ Professional UI with gradient cards and hover effects
✅ Community guidelines and safety features
✅ Responsive design for all devices
✅ Error-free template rendering

app/templates/community/post_detail.html

@@ -642,6 +642,9 @@
     </div>
 </div>
 
+<!-- Chat Discussion Widget -->
+{% include 'chat/embed.html' %}
+
 {% endblock %}
 
 {% block scripts %}