chore(shared-context): auto-update scan + learning traces

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

shared-context/last-scan.json

@@ -1,7 +1,7 @@
 {
-  "timestamp": "2026-03-29T01:01:20Z",
-  "repos_scanned": 157,
+  "timestamp": "2026-04-05T01:02:21Z",
+  "repos_scanned": 0,
   "total_findings": 0,
-  "failed": 122,
-  "elapsed_seconds": 80
+  "failed": 299,
+  "elapsed_seconds": 141
 }