Add JS-specific bits to Actions

package.json

@@ -8,8 +8,10 @@
   "scripts": {
     "build": "tsup",
     "format": "prettier --write .",
-    "lint": "eslint src/**/*.ts",
+    "check-fmt": "prettier --check .",
+    "lint": "eslint src/**/*.ts --ignore-pattern *.test.ts",
     "package": "ncc build",
+    "test": "vitest --watch false",
     "all": "pnpm run format && pnpm run lint && pnpm run build && pnpm run package"
   },
   "repository": {
@@ -39,6 +41,7 @@
     "eslint-plugin-prettier": "^5.1.3",
     "prettier": "^3.2.5",
     "tsup": "^8.0.2",
-    "typescript": "^5.4.5"
+    "typescript": "^5.4.5",
+    "vitest": "^1.5.2"
   }
 }