Optimize cold source health probes

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

@@ -1,5 +1,5 @@
 {
-  "generated_at": "2026-03-19T09:17:16+00:00",
+  "generated_at": "2026-03-19T09:30:58+00:00",
   "advisory_count": 2392,
   "run_count": 140,
   "statuses": {
@@ -154,11 +154,11 @@
     }
   ],
   "monitoring": {
-    "active_source_count": 113,
-    "green_source_count": 113,
+    "active_source_count": 110,
+    "green_source_count": 110,
     "source_failure_count": 0,
     "open_alert_count": 0,
-    "last_fully_green_run": "2026-03-19T09:17:08+00:00"
+    "last_fully_green_run": "2026-03-19T09:30:54+00:00"
   },
   "systems": [
     {
@@ -1969,7 +1969,7 @@
     "verified_ratio": 100.0,
     "complete": true,
     "source_failure_count": 0,
-    "active_source_count": 113,
+    "active_source_count": 110,
     "open_alert_count": 0
   }
 }