Add State Hub RecentlyOnScope invocation

src/activity_core/context_resolvers/state_hub.py

@@ -9,6 +9,7 @@ Supported queries:
   - workplan_index:   GET {STATE_HUB_URL}/workstreams/workplan-index
   - hub_inbox:        GET {STATE_HUB_URL}/messages/?to_agent=hub&unread_only=true
   - daily_triage_digest: curated scalar JSON digest for daily WSJF triage
+  - recently_on_scope_hourly: POST {STATE_HUB_URL}/recently-on-scope/hourly
 
 No caching — state hub data is live operational state and must not be stale
 within a single workflow run.
@@ -45,6 +46,13 @@ def _fetch_json(path: str, params: dict[str, Any] | None = None) -> Any:
         return {}
 
 
+def _post_json(path: str, payload: dict[str, Any]) -> Any:
+    url = f"{_base_url()}{path}"
+    resp = httpx.post(url, json=payload, timeout=_TIMEOUT_SECONDS)
+    resp.raise_for_status()
+    return resp.json()
+
+
 class StateHubContextResolver(ContextResolver):
     """Fetches live data from the Custodian State Hub."""
 
@@ -70,6 +78,13 @@ class StateHubContextResolver(ContextResolver):
             return _fetch_json("/messages/", query_params)
         if query == "daily_triage_digest":
             return _daily_triage_digest(params)
+        if query == "recently_on_scope_hourly":
+            payload = {
+                key: value
+                for key, value in params.items()
+                if key not in {"required"}
+            }
+            return _post_json("/recently-on-scope/hourly", payload)
         return {}