feat: connect project and scenario routers to new Jinja2 views with forms and error handling

services/repositories.py

@@ -5,7 +5,7 @@ from typing import Sequence
 
 from sqlalchemy import select
 from sqlalchemy.exc import IntegrityError
-from sqlalchemy.orm import Session, joinedload
+from sqlalchemy.orm import Session, joinedload, selectinload
 
 from models import FinancialInput, Project, Scenario, SimulationParameter
 from services.exceptions import EntityConflictError, EntityNotFoundError
@@ -17,8 +17,10 @@ class ProjectRepository:
     def __init__(self, session: Session) -> None:
         self.session = session
 
-    def list(self) -> Sequence[Project]:
+    def list(self, *, with_children: bool = False) -> Sequence[Project]:
         stmt = select(Project).order_by(Project.created_at)
+        if with_children:
+            stmt = stmt.options(selectinload(Project.scenarios))
         return self.session.execute(stmt).scalars().all()
 
     def get(self, project_id: int, *, with_children: bool = False) -> Project: