feat(campaigns): add accountable work assignments

src/govoplan_campaign/backend/router.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 from fastapi import APIRouter
 
 from govoplan_campaign.backend.routes.attachments import router as attachments_router
+from govoplan_campaign.backend.routes.assignments import router as assignments_router
 from govoplan_campaign.backend.routes.campaigns import router as campaigns_router
 from govoplan_campaign.backend.routes.collaboration import router as collaboration_router
 from govoplan_campaign.backend.routes.delivery import router as delivery_router
@@ -18,6 +19,7 @@ router = APIRouter()
 for workflow_router in (
     operations_router,
     campaigns_router,
+    assignments_router,
     collaboration_router,
     versions_router,
     jobs_router,