feat: reorder project route registration to prioritize static UI paths and add pytest coverage for navigation endpoints

changelog.md

@@ -13,3 +13,4 @@
 - Delivered a new dashboard experience with `templates/dashboard.html`, dedicated styling, and a FastAPI route supplying real project/scenario metrics via repository helpers.
 - Extended repositories with count/recency utilities and added pytest coverage, including a dashboard rendering smoke test validating empty-state messaging.
 - Brought project and scenario detail pages plus their forms in line with the dashboard visuals, adding metric cards, layout grids, and refreshed CTA styles.
+- Reordered project route registration to prioritize static UI paths, eliminating 422 errors on `/projects/ui` and `/projects/create`, and added pytest smoke coverage for the navigation endpoints.

routes/projects.py

@@ -46,45 +46,6 @@ def create_project(
     return _to_read_model(created)
 
 
-@router.get("/{project_id}", response_model=ProjectRead)
-def get_project(project_id: int, uow: UnitOfWork = Depends(get_unit_of_work)) -> ProjectRead:
-    try:
-        project = uow.projects.get(project_id)
-    except EntityNotFoundError as exc:
-        raise HTTPException(
-            status_code=status.HTTP_404_NOT_FOUND, detail=str(exc)) from exc
-    return _to_read_model(project)
-
-
-@router.put("/{project_id}", response_model=ProjectRead)
-def update_project(
-    project_id: int,
-    payload: ProjectUpdate,
-    uow: UnitOfWork = Depends(get_unit_of_work),
-) -> ProjectRead:
-    try:
-        project = uow.projects.get(project_id)
-    except EntityNotFoundError as exc:
-        raise HTTPException(
-            status_code=status.HTTP_404_NOT_FOUND, detail=str(exc)) from exc
-
-    update_data = payload.model_dump(exclude_unset=True)
-    for field, value in update_data.items():
-        setattr(project, field, value)
-
-    uow.flush()
-    return _to_read_model(project)
-
-
-@router.delete("/{project_id}", status_code=status.HTTP_204_NO_CONTENT)
-def delete_project(project_id: int, uow: UnitOfWork = Depends(get_unit_of_work)) -> None:
-    try:
-        uow.projects.delete(project_id)
-    except EntityNotFoundError as exc:
-        raise HTTPException(
-            status_code=status.HTTP_404_NOT_FOUND, detail=str(exc)) from exc
-
-
 @router.get(
     "/ui",
     response_class=HTMLResponse,
@@ -188,6 +149,48 @@ def create_project_submit(
     )
 
 
+@router.get("/{project_id}", response_model=ProjectRead)
+def get_project(project_id: int, uow: UnitOfWork = Depends(get_unit_of_work)) -> ProjectRead:
+    try:
+        project = uow.projects.get(project_id)
+    except EntityNotFoundError as exc:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND, detail=str(exc)
+        ) from exc
+    return _to_read_model(project)
+
+
+@router.put("/{project_id}", response_model=ProjectRead)
+def update_project(
+    project_id: int,
+    payload: ProjectUpdate,
+    uow: UnitOfWork = Depends(get_unit_of_work),
+) -> ProjectRead:
+    try:
+        project = uow.projects.get(project_id)
+    except EntityNotFoundError as exc:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND, detail=str(exc)
+        ) from exc
+
+    update_data = payload.model_dump(exclude_unset=True)
+    for field, value in update_data.items():
+        setattr(project, field, value)
+
+    uow.flush()
+    return _to_read_model(project)
+
+
+@router.delete("/{project_id}", status_code=status.HTTP_204_NO_CONTENT)
+def delete_project(project_id: int, uow: UnitOfWork = Depends(get_unit_of_work)) -> None:
+    try:
+        uow.projects.delete(project_id)
+    except EntityNotFoundError as exc:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND, detail=str(exc)
+        ) from exc
+
+
 @router.get(
     "/{project_id}/view",
     response_class=HTMLResponse,

tests/test_dashboard_route.py

@@ -71,3 +71,15 @@ class TestDashboardRoute:
         assert "No simulation runs yet" in html
         assert "All scenarios look good" in html
         assert "—" in html  # Last data import placeholder
+
+
+class TestProjectUIRoutes:
+    def test_projects_ui_page_resolves(self, client: TestClient) -> None:
+        response = client.get("/projects/ui")
+        assert response.status_code == 200
+        assert "Projects" in response.text
+
+    def test_projects_create_form_resolves(self, client: TestClient) -> None:
+        response = client.get("/projects/create")
+        assert response.status_code == 200
+        assert "Create Project" in response.text