sync: update from private repo (edc775f2)

package.json

@@ -29,6 +29,7 @@
     "vapid-rotate": "tsx scripts/vapid-rotate.ts"
   },
   "dependencies": {
+    "@a2a-js/sdk": "^0.3.13",
     "@kenjiuno/msgreader": "^1.28.0",
     "@modelcontextprotocol/sdk": "^1.29.0",
     "@mozilla/readability": "^0.6.0",
@@ -45,8 +46,10 @@
     "fast-xml-parser": "^5.4.2",
     "gray-matter": "^4.0.3",
     "http-proxy": "^1.18.1",
+    "iconv-lite": "^0.4.24",
     "linkedom": "^0.18.12",
     "mammoth": "^1.11.0",
+    "oidc-provider": "^9.8.6",
     "p-queue": "^9.3.0",
     "passport": "^0.7.0",
     "passport-google-oauth20": "^2.0.0",