feat: add guards and use spacecat-shared-utils (#6)

* feat: add guards and use spacecat-shared-utils

* chore: add jsdoc

* chore: update readme

* chore: update readme

* fix: TS support for eslint, type defs for utils

* fix: linting

.eslintrc.cjs

@@ -12,6 +12,27 @@
 
 module.exports = {
   root: true,
-  extends: '@adobe/helix',
-  plugins: ['import'],
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    ecmaVersion: 2020,
+    sourceType: 'module',
+  },
+  extends: [
+    '@adobe/helix',
+    'plugin:@typescript-eslint/recommended',
+  ],
+  plugins: [
+    'import',
+    '@typescript-eslint',
+  ],
+  overrides: [
+    {
+      files: ['*.ts'],
+      rules: {},
+    },
+    {
+      files: ['*.js', '*.cjs'],
+      rules: {},
+    },
+  ],
 };

package.json

@@ -31,6 +31,8 @@
     "@semantic-release/changelog": "6.0.3",
     "@semantic-release/git": "10.0.1",
     "@semantic-release/npm": "9.0.2",
+    "@typescript-eslint/eslint-plugin": "6.13.1",
+    "@typescript-eslint/parser": "6.13.1",
     "ajv": "8.12.0",
     "c8": "8.0.1",
     "eslint": "8.54.0",
@@ -41,7 +43,8 @@
     "mocha-multi-reporters": "1.5.1",
     "nock": "13.3.8",
     "semantic-release": "19.0.5",
-    "semantic-release-monorepo": "7.0.5"
+    "semantic-release-monorepo": "7.0.5",
+    "typescript": "5.3.2"
   },
   "lint-staged": {
     "*.js": "eslint"