Warn if npm run start is out of date. (#20)

* Adding some wiring to allow the Ink app to warn if there are local development changes that haven't been captured in the recent build of the Gemini CLI.

* Adding a new useAppEffects.ts file that wores some useEffect handlers in.

* Updating package-lock.json to resolve `npm ci` issues.

* Updating package-lock.json and package.json to resolve `npm ci` issues.

package.json

@@ -9,10 +9,9 @@
   "scripts": {
     "build": "npm run build --workspaces",
     "test": "npm run test --workspaces",
+    "start": "node ./scripts/check-build-status.js && npm run start --workspace=@google/gemini-code -- \"$@\"",
     "lint": "eslint . --ext .ts,.tsx",
     "typecheck": "tsc --noEmit --jsx react",
-    "start": "npm run start --workspace=@google/gemini-code -- \"$@\"",
-    "format": "prettier --write .",
     "artifactregistry-login": "npx google-artifactregistry-auth"
   },
   "devDependencies": {