integrate generalized quality-rails into mosaic bootstrap

rails/quality/templates/monorepo/.eslintrc.strict.js

@@ -0,0 +1,64 @@
+// Root ESLint config for monorepo
+module.exports = {
+  root: true,
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    ecmaVersion: 2022,
+    sourceType: 'module',
+  },
+  plugins: ['@typescript-eslint', 'security'],
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:security/recommended',
+    'plugin:prettier/recommended',
+  ],
+  rules: {
+    // Type Safety - STRICT
+    '@typescript-eslint/no-explicit-any': 'error',
+    '@typescript-eslint/explicit-function-return-type': 'warn',
+    '@typescript-eslint/explicit-module-boundary-types': 'error',
+    '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
+
+    // Promise/Async Safety
+    '@typescript-eslint/no-floating-promises': 'error',
+    '@typescript-eslint/no-misused-promises': 'error',
+    '@typescript-eslint/await-thenable': 'error',
+
+    // Code Quality
+    '@typescript-eslint/no-var-requires': 'error',
+    '@typescript-eslint/prefer-nullish-coalescing': 'warn',
+    '@typescript-eslint/prefer-optional-chain': 'warn',
+
+    // Prettier
+    'prettier/prettier': [
+      'error',
+      {
+        endOfLine: 'auto',
+      },
+    ],
+  },
+  ignorePatterns: [
+    'node_modules',
+    'dist',
+    'build',
+    '.next',
+    'out',
+    'coverage',
+    '.turbo',
+  ],
+  overrides: [
+    {
+      // Next.js apps
+      files: ['apps/**/app/**/*.{ts,tsx}', 'apps/**/pages/**/*.{ts,tsx}'],
+      extends: ['next/core-web-vitals'],
+    },
+    {
+      // NestJS apps
+      files: ['apps/**/*.controller.ts', 'apps/**/*.service.ts', 'apps/**/*.module.ts'],
+      rules: {
+        '@typescript-eslint/explicit-function-return-type': 'error',
+      },
+    },
+  ],
+};