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>

debug_4th_period.py

@@ -0,0 +1,68 @@
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from models import Store, WaitingList, ClassInfo, ClassClosure, DailyClosing
+from datetime import datetime
+from sqlalchemy import func
+
+# Setup DB
+SQLALCHEMY_DATABASE_URL = "sqlite:///./waiting_system.db"
+engine = create_engine(SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False})
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+db = SessionLocal()
+
+def debug_class_assignment():
+    store_id = 4 # Based on previous context (Store ID 4)
+    business_date = "2025-12-08"
+    
+    print(f"--- Debugging Class Assignment for Store {store_id} on {business_date} ---")
+
+    # 1. Get All Active Classes
+    classes = db.query(ClassInfo).filter(
+        ClassInfo.store_id == store_id,
+        ClassInfo.is_active == True
+    ).order_by(ClassInfo.class_number).all()
+    
+    print("\n[Configuration]")
+    for c in classes:
+        print(f"Class {c.class_number}교시 (ID: {c.id}): Name='{c.class_name}', Start='{c.start_time}', Max={c.max_capacity}")
+
+    # 2. Check Closures
+    closures = db.query(ClassClosure).filter(
+        ClassClosure.store_id == store_id,
+        ClassClosure.business_date == business_date
+    ).all()
+    closed_ids = [c.class_id for c in closures]
+    print(f"\n[Closures] Closed Class IDs: {closed_ids}")
+
+    # 3. Analyze Occupancy
+    print("\n[Occupancy Analysis]")
+    for c in classes:
+        if c.id in closed_ids:
+            print(f"Class {c.class_name} (ID {c.id}): CLOSED")
+            continue
+            
+        # Count Occupancy (Waiting + Called + Attended)
+        count = db.query(func.count(WaitingList.id)).filter(
+            WaitingList.class_id == c.id,
+            WaitingList.business_date == business_date,
+            WaitingList.store_id == store_id,
+            WaitingList.status.in_(['waiting', 'called', 'attended'])
+        ).scalar()
+        
+        status = "FULL" if count >= c.max_capacity else "AVAILABLE"
+        print(f"Class {c.class_name} (ID {c.id}): {count}/{c.max_capacity} -> {status}")
+        
+        if c.class_name == "4교시" or "4" in c.class_name:
+            print(f"   >>> DEEP DIVE 4th Period <<<")
+            # List all users in 4th period
+            users = db.query(WaitingList).filter(
+                WaitingList.class_id == c.id,
+                WaitingList.business_date == business_date,
+                WaitingList.store_id == store_id
+            ).all()
+            for u in users:
+                print(f"      - User {u.id}, Status: {u.status}, Phone: {u.phone}")
+
+if __name__ == "__main__":
+    debug_class_assignment()