feat: implement CRUD APIs for projects and scenarios with validated schemas

main.py

@@ -10,6 +10,8 @@ from models import (
     Scenario,
     SimulationParameter,
 )
+from routes.projects import router as projects_router
+from routes.scenarios import router as scenarios_router
 
 # Initialize database schema (imports above ensure models are registered)
 Base.metadata.create_all(bind=engine)
@@ -29,5 +31,7 @@ async def health() -> dict[str, str]:
     return {"status": "ok"}
 
 
-app.mount("/static", StaticFiles(directory="static"), name="static")
+app.include_router(projects_router)
+app.include_router(scenarios_router)
 
+app.mount("/static", StaticFiles(directory="static"), name="static")