Add build testing and pre-commit hooks

- Add test-build.js script to verify standalone build locally
- Add pre-commit hook with security, build, and test checks
- Copy required-server-files.json to root of standalone for Amplify
- Add husky for automatic pre-commit validation

This ensures we test builds locally before pushing

package-lock.json

@@ -28,6 +28,7 @@
         "eslint": "^8.55.0",
         "eslint-plugin-react-hooks": "^4.6.0",
         "eslint-plugin-react-refresh": "^0.4.5",
+        "husky": "^9.1.7",
         "jest": "^30.0.0",
         "jest-environment-jsdom": "^30.0.0",
         "postcss": "^8.4.32",
@@ -6043,6 +6044,22 @@
         "node": ">=10.17.0"
       }
     },
+    "node_modules/husky": {
+      "version": "9.1.7",
+      "resolved": "https://registry.npmjs.org/husky/-/husky-9.1.7.tgz",
+      "integrity": "sha512-5gs5ytaNjBrh5Ow3zrvdUUY+0VxIuWVL4i9irt6friV+BqdCfmV11CQTWMiBYWHbXhco+J1kHfTOUkePhCDvMA==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "husky": "bin.js"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/typicode"
+      }
+    },
     "node_modules/ignore": {
       "version": "5.3.2",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.3.2.tgz",