Security: harden web tools and file parsing (#4058)

* feat: web content security wrapping + gkeep/simple-backup skills

* fix: harden web fetch + media text detection (#4058) (thanks @VACInc)

---------

Co-authored-by: VAC <vac@vacs-mac-mini.localdomain>
Co-authored-by: Peter Steinberger <steipete@gmail.com>

package.json

@@ -246,7 +246,18 @@
       "@sinclair/typebox": "0.34.47",
       "tar": "7.5.7",
       "tough-cookie": "4.1.3"
-    }
+    },
+    "onlyBuiltDependencies": [
+      "@lydell/node-pty",
+      "@matrix-org/matrix-sdk-crypto-nodejs",
+      "@napi-rs/canvas",
+      "@whiskeysockets/baileys",
+      "authenticate-pam",
+      "esbuild",
+      "node-llama-cpp",
+      "protobufjs",
+      "sharp"
+    ]
   },
   "vitest": {
     "coverage": {