chore: refresh vuln summary (README + JSON)

README.md

@@ -1,5 +1,5 @@
 ## 🔒 Vulnerability Summary
 
 <!-- vuln-summary-start -->
-_Last scan: 2026-08-30_<br><br>Critical: 0<br>High: 10<br>Medium: 33<br>Low: 14<br><br>Total: 57
+_Last scan: 2026-08-31_<br><br>Critical: 0<br>High: 10<br>Medium: 33<br>Low: 14<br><br>Total: 57
 <!-- vuln-summary-end -->

data/last-scan.json

@@ -1,5 +1,5 @@
 {
-  "date": "2026-08-30",
+  "date": "2026-08-31",
   "low": 14,
   "medium": 33,
   "high": 10,