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_block_last_class.py

@@ -0,0 +1,31 @@
+"""
+데이터베이스 마이그레이션: store_settings 테이블에 block_last_class_registration 컬럼 추가
+"""
+import sqlite3
+
+def migrate():
+    # 데이터베이스 연결
+    conn = sqlite3.connect('waiting_system.db')
+    cursor = conn.cursor()
+
+    try:
+        # block_last_class_registration 컬럼 추가 (기본값 0 = False)
+        cursor.execute('''
+            ALTER TABLE store_settings
+            ADD COLUMN block_last_class_registration INTEGER DEFAULT 0
+        ''')
+
+        conn.commit()
+        print("✅ 마이그레이션 성공: block_last_class_registration 컬럼이 추가되었습니다.")
+
+    except sqlite3.OperationalError as e:
+        if "duplicate column name" in str(e).lower():
+            print("ℹ️  block_last_class_registration 컬럼이 이미 존재합니다.")
+        else:
+            print(f"❌ 마이그레이션 실패: {e}")
+            raise
+    finally:
+        conn.close()
+
+if __name__ == "__main__":
+    migrate()