feat: enable checkJs by default

configuration/eslint-config/copyright-header-rule.js

@@ -1,4 +1,3 @@
-// @ts-check
 const fs = require("fs");
 const path = require("node:path");
 const child_process = require("child_process");

configuration/eslint-config/copyright-header-rule.spec.js

@@ -1,4 +1,3 @@
-// @ts-check
 "use strict"
 
 const rule = require('./copyright-header-rule')

configuration/eslint-config/index.js

@@ -1,5 +1,3 @@
-// @ts-check
-
 /** @type {import('eslint').Linter.Config} */
 const config = {
   root: true,

configuration/tsconfig/tsconfig.json

@@ -14,6 +14,7 @@
     "noFallthroughCasesInSwitch": true,
     "isolatedModules": true,
     "allowJs": true,
+    "checkJs": true,
     "resolveJsonModule": true,
     "allowSyntheticDefaultImports": true,
     "noImplicitAny": true,