Implement Core Performance Testing Engine (Phase 1 & 2)

- Added Lighthouse and Chrome Launcher dependencies
- Created lib/runner.js test runner service
- Implemented filesystem storage for test results
- Added API endpoints: POST /api/run-test and GET /api/history

package.json

@@ -15,7 +15,10 @@
   "author": "Beyond Cloud Technology",
   "license": "MIT",
   "dependencies": {
-    "express": "^4.18.2"
+    "chrome-launcher": "^1.2.1",
+    "express": "^4.18.2",
+    "lighthouse": "^13.0.1",
+    "uuid": "^13.0.0"
   },
   "devDependencies": {
     "nodemon": "^3.0.1"