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frontend/.eslintrc.cjs

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+module.exports = {
+  root: true,
+  env: {
+    browser: true,
+    es2021: true,
+    node: true,
+  },
+  extends: [
+    'eslint:recommended',
+    'plugin:vue/vue3-recommended',
+  ],
+  parserOptions: {
+    ecmaVersion: 'latest',
+    sourceType: 'module',
+  },
+  plugins: ['vue'],
+  rules: {
+    // Vue-specific rules
+    'vue/multi-word-component-names': 'off',
+    'vue/no-v-html': 'warn',
+    'vue/require-default-prop': 'off',
+    'vue/require-explicit-emits': 'off',
+    'vue/no-setup-props-destructure': 'off',
+
+    // General rules
+    'no-console': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
+    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
+    'no-unused-vars': ['warn', { argsIgnorePattern: '^_' }],
+    'no-undef': 'error',
+
+    // Best practices
+    'eqeqeq': ['error', 'always'],
+    'curly': ['error', 'all'],
+    'prefer-const': 'warn',
+    'no-var': 'error',
+
+    // Spacing and formatting
+    'indent': ['error', 2, { SwitchCase: 1 }],
+    'quotes': ['error', 'single', { avoidEscape: true }],
+    'semi': ['error', 'never'],
+    'comma-dangle': ['error', 'only-multiline'],
+    'arrow-spacing': 'error',
+    'space-before-function-paren': ['error', {
+      anonymous: 'always',
+      named: 'never',
+      asyncArrow: 'always',
+    }],
+  },
+  globals: {
+    defineProps: 'readonly',
+    defineEmits: 'readonly',
+    defineExpose: 'readonly',
+    withDefaults: 'readonly',
+  },
+}