feat(campaigns): add accountable work assignments

tests/test_route_registration.py

@@ -4,6 +4,7 @@ from collections import Counter
 
 from govoplan_campaign.backend.router import router
 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
@@ -27,6 +28,7 @@ def test_campaign_router_composes_every_workflow_operation_once() -> None:
     workflow_routers = (
         operations_router,
         campaigns_router,
+        assignments_router,
         collaboration_router,
         versions_router,
         jobs_router,
@@ -44,7 +46,7 @@ def test_campaign_router_composes_every_workflow_operation_once() -> None:
     actual = _operation_keys(router)
 
     assert actual == expected
-    assert len(actual) == 86
+    assert len(actual) == 93
     assert not [operation for operation, count in Counter(actual).items() if count > 1]
 
 
@@ -56,6 +58,7 @@ def test_key_routes_are_owned_by_their_focused_router() -> None:
         ),
         (campaigns_router, ("GET", "/campaigns/{campaign_id}/workspace")),
         (collaboration_router, ("POST", "/campaigns/{campaign_id}/collaboration")),
+        (assignments_router, ("POST", "/campaigns/{campaign_id}/assignments")),
         (versions_router, ("POST", "/campaigns/versions/{version_id}/build")),
         (jobs_router, ("GET", "/campaigns/{campaign_id}/jobs")),
         (reports_router, ("GET", "/campaigns/{campaign_id}/report")),