feat(policy): add governed DSAR coverage

tests/test_policy_module_contract.py

@@ -18,6 +18,7 @@ from govoplan_core.core.distribution_lists import (
 )
 from govoplan_core.core.reporting import CAPABILITY_POLICY_REPORTING_GOVERNANCE
 from govoplan_policy.backend.manifest import manifest
+from govoplan_policy.backend.dsar_provider import POLICY_DSAR_CAPABILITY
 
 
 ROOT = pathlib.Path(__file__).resolve().parents[1]
@@ -58,6 +59,7 @@ class PolicyModuleContractTests(unittest.TestCase):
                 CAPABILITY_POLICY_VIEW_GOVERNANCE,
                 CAPABILITY_POLICY_ACCESS_EXPLANATION_SUBJECTS,
                 CAPABILITY_POLICY_CAMPAIGN_ARCHIVE_ENCRYPTION,
+                POLICY_DSAR_CAPABILITY,
             },
             set(manifest.capability_factories),
         )