Clean up unused libraries (#53)

* clean up hawk

* remove serialize-javascript

* move express to dev

* remove core.js

* remove lodash

Author: jojozhuang

package-lock.json

@@ -32,14 +32,10 @@
     "@angular/platform-browser-dynamic": "^20.3.6",
     "@angular/router": "^20.3.6",
     "bootstrap": "^4.6.1",
-    "core-js": "^2.6.12",
-    "express": "^4.17.2",
-    "hawk": "^7.1.2",
     "ngx-monaco-editor-v2": "^20.3.0",
     "rimraf": "^2.6.3",
     "rxjs": "^6.6.7",
     "rxjs-compat": "^6.6.7",
-    "serialize-javascript": "^5.0.1",
     "tslib": "^2.3.1",
     "zone.js": "~0.15.1"
   },
@@ -56,14 +52,14 @@
     "eslint": "^9.37.0",
     "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-prettier": "^5.5.4",
+    "express": "^4.17.2",
     "jasmine-core": "~5.1.1",
     "jasmine-spec-reporter": "~7.0.0",
     "karma": "~6.4.2",
     "karma-chrome-launcher": "~3.2.0",
     "karma-coverage": "~2.2.1",
     "karma-jasmine": "~5.1.0",
     "karma-jasmine-html-reporter": "~2.1.0",
-    "lodash": "^4.17.21",
     "prettier": "^3.6.2",
     "protractor": "~7.0.0",
     "ts-node": "~4.1.0",