auto-claude: 030-fix-broken-frontend-linting-setup-and-add-unit-tes #81
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The frontend has an .eslintrc.json that references @typescript-eslint/parser and plugin:@typescript-eslint/recommended, but neither @typescript-eslint/eslint-plugin nor @typescript-eslint/parser are installed in package.json devDependencies. Running ESLint would immediately fail. Additionally, there is no Prettier configuration (no .prettierrc), no unit test framework (no Vitest/Jest), and the CI pipeline does not enforce linting. The only tests are 2 Playwright E2E test files. This means there are zero unit tests for custom hooks (use-message-stream.ts, use-message-polling.ts), Zustand stores, API utility functions, or complex components like collection-manager.tsx (317 lines).