[feat] Add knip for unused code detection (#4890)

knip.config.ts

@@ -0,0 +1,75 @@
+import type { KnipConfig } from 'knip'
+
+const config: KnipConfig = {
+  entry: [
+    'src/main.ts',
+    'vite.config.mts',
+    'vite.electron.config.mts',
+    'vite.types.config.mts',
+    'eslint.config.js',
+    'tailwind.config.js',
+    'postcss.config.js',
+    'playwright.config.ts',
+    'playwright.i18n.config.ts',
+    'vitest.config.ts',
+    'scripts/**/*.{js,ts}'
+  ],
+  project: [
+    'src/**/*.{js,ts,vue}',
+    'tests-ui/**/*.{js,ts,vue}',
+    'browser_tests/**/*.{js,ts}',
+    'scripts/**/*.{js,ts}'
+  ],
+  ignore: [
+    // Generated files
+    'dist/**',
+    'types/**',
+    'node_modules/**',
+    // Config files that might not show direct usage
+    '.husky/**',
+    // Temporary or cache files
+    '.vite/**',
+    'coverage/**',
+    // i18n config
+    '.i18nrc.cjs',
+    // Test setup files
+    'browser_tests/globalSetup.ts',
+    'browser_tests/globalTeardown.ts',
+    'browser_tests/utils/**',
+    // Scripts
+    'scripts/**',
+    // Vite config files
+    'vite.electron.config.mts',
+    'vite.types.config.mts',
+    // Auto generated manager types
+    'src/types/generatedManagerTypes.ts'
+  ],
+  ignoreExportsUsedInFile: true,
+  // Vue-specific configuration
+  vue: true,
+  // Only check for unused files, disable all other rules
+  // TODO: Gradually enable other rules - see https://github.com/Comfy-Org/ComfyUI_frontend/issues/4888
+  rules: {
+    binaries: 'off',
+    classMembers: 'off',
+    dependencies: 'off',
+    devDependencies: 'off',
+    duplicates: 'off',
+    enumMembers: 'off',
+    exports: 'off',
+    nsExports: 'off',
+    nsTypes: 'off',
+    types: 'off',
+    unlisted: 'off'
+  },
+  // Include dependencies analysis
+  includeEntryExports: true,
+  // Workspace configuration for monorepo-like structure
+  workspaces: {
+    '.': {
+      entry: ['src/main.ts']
+    }
+  }
+}
+
+export default config