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_422_auth.py

@@ -0,0 +1,38 @@
+
+import requests
+
+BASE_URL = "http://localhost:8080"
+
+def get_token():
+    url = f"{BASE_URL}/api/auth/login"
+    data = {"username": "superadmin", "password": "superadmin123"}
+    resp = requests.post(url, data=data)
+    if resp.status_code == 200:
+        return resp.json()["access_token"]
+    print(f"Login failed: {resp.status_code} {resp.text}")
+    return None
+
+def test_next_slot():
+    token = get_token()
+    if not token:
+        return
+
+    url = f"{BASE_URL}/api/waiting/next-slot"
+    
+    headers = {
+        "X-Store-Id": "4",
+        "Authorization": f"Bearer {token}",
+        "Content-Type": "application/json"
+    }
+    
+    print(f"Requesting {url} with headers {headers}")
+    
+    try:
+        resp = requests.get(url, headers=headers)
+        print(f"Status: {resp.status_code}")
+        print(f"Body: {resp.text}")
+    except Exception as e:
+        print(e)
+
+if __name__ == "__main__":
+    test_next_slot()