fix: 适配 API 新的统一响应格式 { success: true, data: T }

Changes:
- client.py: _handle_response() 自动解包 data 字段
- device_flow.py: 兼容新响应格式，使用 data.get('data', data) 解包
- 更新测试以使用新的 API 响应格式

Compatible with API changes in bootcs-api commit 0926481

Author: William Yang

bootcs/api/client.py

@@ -72,7 +72,7 @@ def _handle_response(self, response: requests.Response) -> Dict[str, Any]:
             response: The HTTP response.
         
         Returns:
-            Parsed JSON response data.
+            Parsed JSON response data (unwrapped from { success, data } envelope).
         
         Raises:
             APIError: If the response indicates an error.
@@ -95,6 +95,11 @@ def _handle_response(self, response: requests.Response) -> Dict[str, Any]:
                 status_code=response.status_code
             )
 
+        # API returns { success: true, data: {...} } format
+        # Unwrap and return just the data portion for convenience
+        if "data" in data:
+            return data["data"]
+        
         return data
 
     def post(self, path: str, data: Dict[str, Any], timeout: int = 30) -> Dict[str, Any]:

bootcs/auth/device_flow.py

@@ -73,13 +73,16 @@ def start_device_flow() -> DeviceCodeResponse:
                 message=error.get("message", "Failed to start device flow")
             )
 
-        # API returns data directly (not wrapped in success/data)
+        # API returns { success: true, data: {...} } format
+        # Unwrap the data portion
+        payload = data.get("data", data)
+        
         return DeviceCodeResponse(
-            device_code=data["deviceCode"],
-            user_code=data["userCode"],
-            verification_uri=data["verificationUri"],
-            expires_in=data["expiresIn"],
-            interval=data.get("interval", 5),
+            device_code=payload["deviceCode"],
+            user_code=payload["userCode"],
+            verification_uri=payload["verificationUri"],
+            expires_in=payload["expiresIn"],
+            interval=payload.get("interval", 5),
         )
     except requests.RequestException as e:
         raise DeviceFlowError(
@@ -153,12 +156,15 @@ def poll_for_token(
                         message=error.get("message", "Authentication failed")
                     )
 
-            if response.ok and "token" in data:
-                # Success! API returns data directly
-                return TokenResponse(
-                    token=data["token"],
-                    user=data.get("user", {})
-                )
+            if response.ok:
+                # Success! API returns { success: true, data: {...} } format
+                # Check for data.token or direct token field
+                payload = data.get("data", data)
+                if "token" in payload:
+                    return TokenResponse(
+                        token=payload["token"],
+                        user=payload.get("user", {})
+                    )
 
         except requests.RequestException as e:
             # Network error, retry

tests/unit/test_api.py

@@ -39,7 +39,10 @@ def test_post_success(self, mock_post):
         """Test successful POST request."""
         mock_response = MagicMock()
         mock_response.ok = True
-        mock_response.json.return_value = {"submissionId": "123", "status": "EVALUATING"}
+        mock_response.json.return_value = {
+            "success": True,
+            "data": {"submissionId": "123", "status": "EVALUATING"}
+        }
         mock_post.return_value = mock_response
 
         client = APIClient(token="token")

tests/unit/test_auth.py

@@ -96,11 +96,14 @@ def test_start_device_flow_success(self, mock_post):
         mock_response = MagicMock()
         mock_response.ok = True
         mock_response.json.return_value = {
-            "deviceCode": "abc123",
-            "userCode": "ABCD-1234",
-            "verificationUri": "https://github.com/login/device",
-            "expiresIn": 900,
-            "interval": 5,
+            "success": True,
+            "data": {
+                "deviceCode": "abc123",
+                "userCode": "ABCD-1234",
+                "verificationUri": "https://github.com/login/device",
+                "expiresIn": 900,
+                "interval": 5,
+            }
         }
         mock_post.return_value = mock_response