Add pre-commit hook (#197)

.husky/pre-commit

@@ -0,0 +1,7 @@
+npm test
+npm run format-check || {
+  echo ""
+  echo "❌ Formatting check failed."
+  echo "💡 Run 'npm run format' or 'prettier --write .' to fix formatting issues."
+  exit 1
+}

package-lock.json

@@ -20,6 +20,7 @@
             "@types/jest": "^30.0.0",
             "@types/node": "^24.0.7",
             "@vercel/ncc": "^0.38.3",
+            "husky": "^9.1.7",
             "jest": "^30.0.3",
             "prettier": "^3.6.2",
             "ts-jest": "^29.4.0",
@@ -2582,6 +2583,22 @@
             "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/import-local": {
          "version": "3.2.0",
          "resolved": "https://registry.npmjs.org/import-local/-/import-local-3.2.0.tgz",

package.json

@@ -20,12 +20,14 @@
       "test": "jest",
       "test-coverage": "jest --coverage",
       "format": "prettier --write .",
-      "format-check": "prettier --check ."
+      "format-check": "prettier --check .",
+      "prepare": "husky"
    },
    "devDependencies": {
       "@types/jest": "^30.0.0",
       "@types/node": "^24.0.7",
       "@vercel/ncc": "^0.38.3",
+      "husky": "^9.1.7",
       "jest": "^30.0.3",
       "prettier": "^3.6.2",
       "ts-jest": "^29.4.0",