Initial scaffold: Researcher Endorsement frontend

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.github/agents/eslint-setup.agent.md

@@ -0,0 +1,46 @@
+---
+name: "ESLint Setup"
+description: "Scaffolds ESLint for React + TypeScript with Prettier integration and recommended rules for frontend projects."
+triggers:
+  - "setup eslint"
+  - "create .eslintrc for typescript react"
+  - "configure eslint with prettier"
+---
+
+# ESLint Setup
+
+Purpose
+- Provide a production-ready ESLint configuration that works with TypeScript, React, imports resolution, and Prettier.
+
+Example prompts
+- "create eslint config for react + ts"
+- "add eslint rules for accessibility and import order"
+
+Suggested .eslintrc.cjs
+```js
+module.exports = {
+  env: { browser: true, es2021: true, node: true },
+  parser: '@typescript-eslint/parser',
+  parserOptions: { ecmaVersion: 'latest', sourceType: 'module', ecmaFeatures: { jsx: true } },
+  extends: [
+    'eslint:recommended',
+    'plugin:react/recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:jsx-a11y/recommended',
+    'prettier'
+  ],
+  plugins: ['react', '@typescript-eslint', 'jsx-a11y', 'import'],
+  settings: {
+    react: { version: 'detect' },
+    'import/resolver': { typescript: {} }
+  },
+  rules: {
+    'react/react-in-jsx-scope': 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'warn'
+  }
+}
+```
+
+Notes
+- Install: `npm i -D eslint @typescript-eslint/parser @typescript-eslint/eslint-plugin eslint-plugin-react eslint-plugin-jsx-a11y eslint-plugin-import eslint-config-prettier`
+- Consider `eslint --fix` via `npm run lint:fix` script and integrate with pre-commit hooks.