Optimize cold source health probes

08-threat-intel/generated/dashboard/data/monitor-summary.json

@@ -1,15 +1,15 @@
 {
-  "generated_at": "2026-03-19T09:17:08+00:00",
-  "active_source_count": 113,
-  "green_source_count": 113,
+  "generated_at": "2026-03-19T09:30:54+00:00",
+  "active_source_count": 110,
+  "green_source_count": 110,
   "source_failure_count": 0,
   "open_alert_count": 0,
   "resolved_alert_count": 4,
-  "last_fully_green_run": "2026-03-19T09:17:08+00:00",
+  "last_fully_green_run": "2026-03-19T09:30:54+00:00",
   "source_catalog": {
     "system_count": 62,
     "source_count": 179,
-    "retired_source_count": 66
+    "retired_source_count": 69
   },
   "ingest": {
     "new_count": 0,