feat(governance): link work items to event history

apps/api/src/services/governance_query_service.py

@@ -195,6 +195,7 @@ async def _load_dispatch_ids_for_events(event_ids: list[str]) -> dict[str, list[
 
 async def query_governance_events(
     *,
+    event_ids: list[str] | None = None,
     event_types: list[str] | None = None,
     from_dt: datetime | None = None,
     to_dt: datetime | None = None,
@@ -212,6 +213,14 @@ async def query_governance_events(
     async with get_db_context() as db:
         stmt = select(AiGovernanceEvent)
 
+        normalized_event_ids = [
+            event_id.strip()
+            for event_id in (event_ids or [])
+            if isinstance(event_id, str) and event_id.strip()
+        ]
+        if normalized_event_ids:
+            stmt = stmt.where(AiGovernanceEvent.id.in_(normalized_event_ids))
+
         if event_types:
             stmt = stmt.where(AiGovernanceEvent.event_type.in_(event_types))