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/routes/chat.py

@@ -0,0 +1,125 @@
+"""
+Chat web interface routes
+Provides HTML templates and endpoints for web-based chat
+"""
+from flask import Blueprint, render_template, request, redirect, url_for, flash, jsonify
+from flask_login import login_required, current_user
+from sqlalchemy import desc, and_
+
+from app.extensions import db
+from app.models import ChatRoom, ChatMessage, ChatParticipant, Post
+
+# Create blueprint
+chat = Blueprint('chat', __name__)
+
+@chat.route('/')
+@login_required
+def index():
+    """Chat main page with room list and rules"""
+    # Get user's recent chat rooms
+    user_rooms = db.session.query(ChatRoom).join(ChatParticipant).filter(
+        and_(
+            ChatParticipant.user_id == current_user.id,
+            ChatRoom.is_active == True
+        )
+    ).order_by(desc(ChatRoom.last_activity)).limit(10).all()
+    
+    # Get public rooms that are active
+    public_rooms = ChatRoom.query.filter(
+        ChatRoom.is_active == True,
+        ChatRoom.is_private == False
+    ).order_by(desc(ChatRoom.last_activity)).limit(10).all()
+    
+    return render_template('chat/index.html', 
+                         user_rooms=user_rooms,
+                         public_rooms=public_rooms)
+
+@chat.route('/room/<int:room_id>')
+@login_required
+def room(room_id):
+    """Chat room interface"""
+    room = ChatRoom.query.get_or_404(room_id)
+    
+    # Check access
+    if room.is_private:
+        participant = ChatParticipant.query.filter_by(
+            room_id=room_id,
+            user_id=current_user.id
+        ).first()
+        if not participant:
+            flash('You do not have access to this chat room.', 'error')
+            return redirect(url_for('chat.index'))
+    
+    # Get or create participant record
+    participant = ChatParticipant.query.filter_by(
+        room_id=room_id,
+        user_id=current_user.id
+    ).first()
+    
+    if not participant and not room.is_private:
+        # Auto-join public rooms
+        participant = ChatParticipant(
+            room_id=room_id,
+            user_id=current_user.id,
+            role='member'
+        )
+        db.session.add(participant)
+        db.session.commit()
+    
+    # Get recent messages
+    messages = ChatMessage.query.filter_by(
+        room_id=room_id,
+        is_deleted=False
+    ).order_by(ChatMessage.created_at).limit(50).all()
+    
+    # Get participants
+    participants = ChatParticipant.query.filter_by(room_id=room_id).all()
+    
+    return render_template('chat/room.html',
+                         room=room,
+                         messages=messages,
+                         participants=participants,
+                         current_participant=participant)
+
+@chat.route('/create')
+@login_required
+def create_room_form():
+    """Show create room form"""
+    # Get available posts for post discussions
+    recent_posts = Post.query.filter_by(published=True).order_by(
+        desc(Post.created_at)
+    ).limit(20).all()
+    
+    return render_template('chat/create_room.html', posts=recent_posts)
+
+@chat.route('/support')
+@login_required
+def support():
+    """Admin support page"""
+    # Get user's recent support tickets (rooms they created for support)
+    recent_tickets = ChatRoom.query.filter(
+        ChatRoom.room_type == 'admin_support',
+        ChatRoom.created_by_id == current_user.id
+    ).order_by(desc(ChatRoom.created_at)).limit(5).all()
+    
+    return render_template('chat/support.html', 
+                         recent_tickets=recent_tickets)
+
+@chat.route('/embed/<int:post_id>')
+@login_required
+def embed_post_chat(post_id):
+    """Embedded chat widget for post pages"""
+    post = Post.query.get_or_404(post_id)
+    
+    # Find existing discussion room
+    discussion_room = ChatRoom.query.filter(
+        and_(
+            ChatRoom.room_type == 'post_discussion',
+            ChatRoom.related_post_id == post_id,
+            ChatRoom.is_active == True
+        )
+    ).first()
+    
+    return render_template('chat/embed.html',
+                         post=post,
+                         discussion_room=discussion_room)