Fix BPA registration error message issue

routers/bpa_register.py

@@ -73,18 +73,11 @@ async def register_bpa_user(
             response = await client.post(
                 url, headers=headers, json=user_data.model_dump()
             )
-
-            if response.status_code == 409:
-                raise HTTPException(
-                    status_code=409,
-                    detail="User with this email or username already exists",
-                )
-
             if response.status_code != 201:
                 raise HTTPException(
-                    status_code=400, detail=f"Failed to create user: {response.text}"
+                    status_code=400,
+                    detail=f"Registration failed: {response.json()['message']}",
                 )
-
             return {"message": "User registered successfully", "user": response.json()}
 
     except HTTPException:

tests/test_bpa_register.py

@@ -71,14 +71,16 @@ def test_registration_duplicate_user(
     """Test registration with duplicate user"""
     mock_response = MagicMock()
     mock_response.status_code = 409
+    mock_response.json.return_value = {"message": "User already exists"}
+
     mocker.patch("httpx.AsyncClient.post", return_value=mock_response)
 
     response = client_with_settings_override.post(
         "/bpa/register", json=valid_registration_data
     )
 
-    assert response.status_code == 409
-    assert "already exists" in response.json()["detail"]
+    assert response.status_code == 400
+    assert response.json()["detail"] == "Registration failed: User already exists"
 
 
 def test_registration_auth0_error(
@@ -87,15 +89,16 @@ def test_registration_auth0_error(
     """Test registration with Auth0 API error"""
     mock_response = MagicMock()
     mock_response.status_code = 400
-    mock_response.text = "Invalid request"
+    mock_response.json.return_value = {"message": "Invalid request"}
+
     mocker.patch("httpx.AsyncClient.post", return_value=mock_response)
 
     response = client_with_settings_override.post(
         "/bpa/register", json=valid_registration_data
     )
 
     assert response.status_code == 400
-    assert "Failed to create user" in response.json()["detail"]
+    assert response.json()["detail"] == "Registration failed: Invalid request"
 
 
 def test_registration_with_invalid_organization(