Final: Complete modernization - Option 1 deployment, unified persistence, migration scripts

- Implement Docker image-based deployment (Option 1)
  * Code immutable in image, no volume override
  * Eliminated init-data.sh manual step
  * Simplified deployment process

- Unified persistence in data/ folder
  * Moved nginx.conf and nginx-custom-domains.conf to data/
  * All runtime configs and data in single location
  * Clear separation: repo (source) vs data/ (runtime)

- Archive legacy features
  * Groups blueprint and templates removed
  * Legacy playlist routes redirected to content area
  * Organized in old_code_documentation/

- Added network migration support
  * New migrate_network.sh script for IP changes
  * Regenerates SSL certs for new IP
  * Updates database configuration
  * Tested workflow: clone → deploy → migrate

- Enhanced deploy.sh
  * Creates data directories
  * Copies nginx configs from repo to data/
  * Validates file existence before deployment
  * Prevents incomplete deployments

- Updated documentation
  * QUICK_DEPLOYMENT.md shows 4-step workflow
  * Complete deployment workflow documented
  * Migration procedures included

- Production ready deployment workflow:
  1. Clone & setup (.env configuration)
  2. Deploy (./deploy.sh)
  3. Migrate network (./migrate_network.sh if needed)
  4. Normal operations (docker compose restart)

app/blueprints/api.py

@@ -7,7 +7,7 @@ import bcrypt
 from typing import Optional, Dict, List
 
 from app.extensions import db, cache
-from app.models import Player, Group, Content, PlayerFeedback, ServerLog
+from app.models import Player, Content, PlayerFeedback, ServerLog
 from app.utils.logger import log_action
 
 api_bp = Blueprint('api', __name__, url_prefix='/api')
@@ -599,31 +599,33 @@ def system_info():
         return jsonify({'error': 'Internal server error'}), 500
 
 
-@api_bp.route('/groups', methods=['GET'])
-@rate_limit(max_requests=60, window=60)
-def list_groups():
-    """List all groups with basic information."""
-    try:
-        groups = Group.query.order_by(Group.name).all()
-        
-        groups_data = []
-        for group in groups:
-            groups_data.append({
-                'id': group.id,
-                'name': group.name,
-                'description': group.description,
-                'player_count': group.players.count(),
-                'content_count': group.contents.count()
-            })
-        
-        return jsonify({
-            'groups': groups_data,
-            'count': len(groups_data)
-        })
-        
-    except Exception as e:
-        log_action('error', f'Error listing groups: {str(e)}')
-        return jsonify({'error': 'Internal server error'}), 500
+
+# DEPRECATED: Groups functionality has been archived
+# @api_bp.route('/groups', methods=['GET'])
+# @rate_limit(max_requests=60, window=60)
+# def list_groups():
+#     """List all groups with basic information."""
+#     try:
+#         groups = Group.query.order_by(Group.name).all()
+#         
+#         groups_data = []
+#         for group in groups:
+#             groups_data.append({
+#                 'id': group.id,
+#                 'name': group.name,
+#                 'description': group.description,
+#                 'player_count': group.players.count(),
+#                 'content_count': group.contents.count()
+#             })
+#         
+#         return jsonify({
+#             'groups': groups_data,
+#             'count': len(groups_data)
+#         })
+#         
+#     except Exception as e:
+#         log_action('error', f'Error listing groups: {str(e)}')
+#         return jsonify({'error': 'Internal server error'}), 500
 
 
 @api_bp.route('/content', methods=['GET'])