Add eslint (#294)

* Add eslint

* Add eslint github action

Author: huchenlei

.github/workflows/eslint.yaml

@@ -0,0 +1,25 @@
+name: ESLint
+
+on:
+  push:
+    branches:
+      - main
+      - master
+      - 'dev*'
+  pull_request:
+    branches:
+      - main
+      - master
+      - 'dev*'
+
+jobs:
+  eslint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Use Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: lts/*
+    - run: npm ci
+    - run: npm run lint

eslint.config.js

@@ -0,0 +1,32 @@
+import globals from 'globals'
+import pluginJs from '@eslint/js'
+import tseslint from 'typescript-eslint'
+import pluginVue from 'eslint-plugin-vue'
+
+export default [
+  {
+    files: ['src/**/*.{js,mjs,cjs,ts,vue}']
+  },
+  {
+    ignores: [
+      'src/scripts/*',
+      'src/extensions/core/*',
+      'src/types/vue-shim.d.ts'
+    ]
+  },
+  { languageOptions: { globals: globals.browser } },
+  pluginJs.configs.recommended,
+  ...tseslint.configs.recommended,
+  ...pluginVue.configs['flat/essential'],
+  {
+    files: ['src/**/*.vue'],
+    languageOptions: { parserOptions: { parser: tseslint.parser } }
+  },
+  {
+    rules: {
+      '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/no-unused-vars': 'off',
+      '@typescript-eslint/prefer-as-const': 'off'
+    }
+  }
+]