Add waiting system application files

- Add main application files (main.py, models.py, schemas.py, etc.)
- Add routers for all features (waiting, attendance, members, etc.)
- Add HTML templates for admin and user interfaces
- Add migration scripts and utility files
- Add Docker configuration
- Add documentation files
- Add .gitignore to exclude database and cache files

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

migrate_add_waiting_manager_max_width.py

@@ -0,0 +1,29 @@
+from database import SessionLocal
+from sqlalchemy import text
+
+def add_column():
+    db = SessionLocal()
+    try:
+        # Check if column exists
+        result = db.execute(text("PRAGMA table_info(store_settings)"))
+        columns = [row[1] for row in result.fetchall()]
+        
+        column_name = 'waiting_manager_max_width'
+        
+        if column_name not in columns:
+            print(f"Adding {column_name} column to store_settings table...")
+            # Integer column, nullable
+            db.execute(text(f"ALTER TABLE store_settings ADD COLUMN {column_name} INTEGER"))
+            db.commit()
+            print("Column added successfully.")
+        else:
+            print("Column already exists.")
+            
+    except Exception as e:
+        print(f"Error: {e}")
+        db.rollback()
+    finally:
+        db.close()
+
+if __name__ == "__main__":
+    add_column()