chore: update devcontainer setup and pre-commit configuration

.devcontainer/devcontainer.json

@@ -1,17 +1,13 @@
 {
-  "name": "Gemini Agent Quality Ops",
-  "build": {
-    "dockerfile": "Dockerfile"
-  },
+  "name": "JS Dev Container",
+  "image": "mcr.microsoft.com/devcontainers/javascript-node:1-20",
   "features": {
-    "ghcr.io/devcontainers/features/python:1": {
-      "version": "3.11",
-      "installTools": true,
-      "optimize": true
-    },
     "ghcr.io/devcontainers/features/git:1": {},
     "ghcr.io/devcontainers/features/git-lfs:1": {},
-    "ghcr.io/devcontainers-extra/features/pre-commit:2": {}
+    "ghcr.io/devcontainers-extra/features/pre-commit:2": {},
+    "ghcr.io/devcontainers-extra/features/npm-packages:1": {
+      "packages": "@google/gemini-cli"
+    }
   },
   "customizations": {
     "vscode": {
@@ -29,12 +25,13 @@
     }
   },
   "postStartCommand": "bash .devcontainer/setup.sh",
-  "remoteUser": "vscode",
+  "remoteUser": "node",
   "updateRemoteUserUID": true,
   "mounts": [
     "source=pipx-venvs,target=/home/node/.local/share/pipx,type=volume",
     "source=pipx-bin,target=/home/node/.local/bin,type=volume",
     "source=pre-commit-cache,target=/home/node/.cache/pre-commit,type=volume",
-    "source=${localEnv:USERPROFILE}/.gemini,target=/home/node/.gemini,type=bind"
+    "source=${localEnv:USERPROFILE}/.gemini,target=/home/node/.gemini,type=bind",
+    "source=gvscode-extensions,target=/home/node/.cache/google-vscode-extension,type=volume"
   ]
 }