chore(ai): security scan and dependency issues

- Generated artifacts/npm-audit.json
- Generated artifacts/npm-outdated.json
- Created issue drafts in artifacts/issues/ for blocked/major upgrades:
  - nostr-tools (Blocked by policy)
  - cross-env (Major v10)
  - tailwindcss (Major v4)
  - jsdom (Major v27)
  - esbuild (Major v0.27)

artifacts/npm-audit.json

@@ -12,11 +12,11 @@
     },
     "dependencies": {
       "prod": 5,
-      "dev": 316,
+      "dev": 314,
       "optional": 29,
       "peer": 0,
       "peerOptional": 0,
-      "total": 320
+      "total": 318
     }
   }
 }