feat: vendor and persist Codex fast mode

package-lock.json

@@ -9,7 +9,7 @@
       "version": "0.1.0",
       "dependencies": {
         "@ff-labs/pi-fff": "0.10.5",
-        "@firstpick/pi-extension-codex-fast-mode": "0.1.1",
+        "@firstpick/pi-extension-codex-fast-mode": "file:./pi-extension-codex-fast-mode",
         "@gotgenes/pi-permission-system": "file:./pi-permission-system",
         "@keenable/pi-search": "0.1.2",
         "@ogulcancelik/pi-codex-compaction": "0.1.3",
@@ -2263,16 +2263,8 @@
       }
     },
     "node_modules/@firstpick/pi-extension-codex-fast-mode": {
-      "version": "0.1.1",
-      "resolved": "https://registry.npmjs.org/@firstpick/pi-extension-codex-fast-mode/-/pi-extension-codex-fast-mode-0.1.1.tgz",
-      "integrity": "sha512-P/+chadW+mDDwKgy6v3lvhtJVwFKuDEmROnk4ei2oJBkZJbjgNSVGV2ZgEaRoOACmbmvwaaXPnG5WId5kgTPnA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=22.19.0"
-      },
-      "peerDependencies": {
-        "@earendil-works/pi-coding-agent": "*"
-      }
+      "resolved": "pi-extension-codex-fast-mode",
+      "link": true
     },
     "node_modules/@gotgenes/pi-permission-system": {
       "resolved": "pi-permission-system",
@@ -7025,6 +7017,17 @@
         "zod": "^3.25.28 || ^4"
       }
     },
+    "pi-extension-codex-fast-mode": {
+      "name": "@firstpick/pi-extension-codex-fast-mode",
+      "version": "0.1.1",
+      "license": "MIT",
+      "engines": {
+        "node": ">=22.19.0"
+      },
+      "peerDependencies": {
+        "@earendil-works/pi-coding-agent": "*"
+      }
+    },
     "pi-minimal-footer": {
       "name": "@ogulcancelik/pi-minimal-footer",
       "version": "0.1.10-my-pi.1",