feat: add internal alpha frontend shell

backend/app/main.py

@@ -18,6 +18,7 @@ from app.identity import (
     install_identity_middleware,
     router as identity_router,
 )
+from app.frontend.router import router as frontend_router
 from app.inventory.router import router as inventory_router
 from app.components.router import router as components_router
 from app.repairs.exceptions import (
@@ -41,6 +42,7 @@ from app.repairs.router import (
 
 app = FastAPI(title=settings.app_name)
 app.include_router(identity_router)
+app.include_router(frontend_router)
 app.include_router(inventory_router)
 app.include_router(components_router)
 install_identity_middleware(app)