refactor(storage): route project DSNs and remove legacy backends

app/api/v1/endpoints/model_import.py

@@ -17,8 +17,13 @@ from app.auth.metadata_dependencies import (
     get_current_metadata_admin,
     get_metadata_repository,
 )
+from app.auth.project_dependencies import (
+    ProjectContext,
+    resolve_project_business_routing,
+)
 from app.core.audit import AuditAction, log_audit_event
 from app.infra.db.metadb.repositories.metadata_repository import MetadataRepository
+from app.infra.db.project_routing import activate_project_routing
 from app.services.network_import import network_update
 from app.services.tjnetwork import run_inp
 
@@ -118,21 +123,21 @@ async def _run_uploaded_inp(content: bytes) -> str:
     return run_inp(model_name)
 
 
-async def _update_from_inp(content: bytes) -> None:
+async def _update_from_inp(content: bytes, project_code: str) -> None:
     temp_path: Path | None = None
     try:
         with NamedTemporaryFile(suffix=".inp", delete=False) as temp_file:
             temp_file.write(content)
             temp_path = Path(temp_file.name)
-        network_update(str(temp_path))
+        network_update(str(temp_path), project_code)
     finally:
         if temp_path is not None:
             temp_path.unlink(missing_ok=True)
 
 
-async def _apply_model_update(content: bytes) -> None:
+async def _apply_model_update(content: bytes, project_code: str) -> None:
     try:
-        await _update_from_inp(content)
+        await _update_from_inp(content, project_code)
     except Exception as exc:
         raise HTTPException(
             status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
@@ -177,7 +182,19 @@ async def update_project_model(
 ) -> dict:
     project = await _get_active_project(project_id, metadata_repo)
     content, filename = await _read_upload(file)
-    await _apply_model_update(content)
+    routing = await resolve_project_business_routing(
+        ProjectContext(
+            project_id=project.id,
+            project_code=project.code,
+            user_id=current_user.id,
+            project_role="owner",
+            system_role=current_user.role,
+            is_superuser=current_user.is_superuser,
+        ),
+        metadata_repo,
+    )
+    with activate_project_routing(routing):
+        await _apply_model_update(content, project.code)
     await _audit_model_change(
         request=request,
         current_user=current_user,