fix(cli): declare node-pty as runtime dep so npx runfusion.ai terminal works on clean install

node-pty was previously only present transitively via the workspace
@fusion/dashboard devDependency, which is stripped at publish time. Fresh
users running `npx runfusion.ai` hit a 503 "PTY module could not be loaded"
when opening the dashboard terminal. Tightened the package-config guard so
this regression is caught next time.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/cli/package.json

@@ -64,6 +64,7 @@
     "ink-text-input": "^6.0.0",
     "ioredis": "^5.6.0",
     "multer": "^2.1.1",
+    "node-pty": "npm:@homebridge/node-pty-prebuilt-multiarch@^0.13.1",
     "react": "^19.0.0"
   },
   "peerDependencies": {