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_member_barcode.py

@@ -0,0 +1,35 @@
+import sqlite3
+import os
+
+DB_PATH = 'waiting_system.db'
+
+def migrate():
+    if not os.path.exists(DB_PATH):
+        print(f"Database {DB_PATH} not found.")
+        return
+
+    conn = sqlite3.connect(DB_PATH)
+    cursor = conn.cursor()
+    try:
+        cursor.execute("PRAGMA table_info(members)")
+        columns = [info[1] for info in cursor.fetchall()]
+        print(f"Current columns in members: {columns}")
+
+        if 'barcode' not in columns:
+            print("Adding barcode column to members table...")
+            cursor.execute("ALTER TABLE members ADD COLUMN barcode VARCHAR")
+            # SQLite CREATE INDEX logic
+            cursor.execute("CREATE INDEX IF NOT EXISTS ix_members_barcode ON members (barcode)")
+            print("Barcode column added successfully.")
+        else:
+            print("barcode column already exists.")
+            
+    except Exception as e:
+        print(f"Error: {e}")
+        conn.rollback()
+    finally:
+        conn.commit()
+        conn.close()
+
+if __name__ == "__main__":
+    migrate()