feat(automation): add nut.js OS-level automation adapter per architecture spec - Create NutJsAutomationAdapter implementing IBrowserAutomation with OS-level mouse/keyboard control - Use mouse.move(), mouse.leftClick(), keyboard.type(), keyboard.pressKey() for real OS automation - Cross-platform support (Command key for macOS, Control key for Windows/Linux) - Production mode in DI container now uses NutJsAutomationAdapter - Add mouseSpeed and keyboardDelay configuration options - Add companion:production npm script for production mode - Step 18 (TRACK_CONDITIONS) maintains safety stop before checkout

package.json

@@ -25,6 +25,7 @@
     "companion:start": "electron .",
     "companion:mock": "AUTOMATION_MODE=mock npm run companion:start",
     "companion:devtools": "AUTOMATION_MODE=dev npm run companion:start",
+    "companion:production": "AUTOMATION_MODE=production npm run companion:start",
     "chrome:debug": "open -a 'Google Chrome' --args --remote-debugging-port=9222 --user-data-dir=/tmp/chrome-debug"
   },
   "devDependencies": {
@@ -41,6 +42,7 @@
     "vitest": "^2.1.8"
   },
   "dependencies": {
+    "@nut-tree-fork/nut-js": "^4.2.6",
     "puppeteer-core": "^24.31.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0"