Add local glTF viewer and visual coverage

Amp-Thread-ID: https://ampcode.com/threads/T-01a02d1c-27fc-7761-9f51-ed97b2dd4e3e
Co-authored-by: Heaust Azure <heaust.azure@gmail.com>

package-lock.json

@@ -14,6 +14,7 @@
       "devDependencies": {
         "@codemirror/lang-javascript": "^6.2.5",
         "@codemirror/theme-one-dark": "^6.1.3",
+        "agent-browser": "0.33.2",
         "codemirror": "^6.0.2",
         "esbuild": "^0.25.9",
         "monaco-editor": "^0.52.2",
@@ -1462,6 +1463,21 @@
       "resolved": "addons/handles",
       "link": true
     },
+    "node_modules/agent-browser": {
+      "version": "0.33.2",
+      "resolved": "https://registry.npmjs.org/agent-browser/-/agent-browser-0.33.2.tgz",
+      "integrity": "sha512-e+TZ0G04uw2rs+lVB8gn0IWTT7ErfiAl3jQ4zNNwyqDhgXWJKhqxYKkyibjuBGXLzx/APlzU3IWAsOVdRwh0DA==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "agent-browser": "bin/agent-browser.js"
+      },
+      "engines": {
+        "node": ">=24.0.0",
+        "pnpm": ">=11.0.0"
+      }
+    },
     "node_modules/algoliasearch": {
       "version": "5.57.0",
       "resolved": "https://registry.npmjs.org/algoliasearch/-/algoliasearch-5.57.0.tgz",