Add CI workflow, ESLint, Prettier, and pre-commit hooks

* feat: add minimal TUI mode with code review fixes

- Add src/ui/tui.ts: ~150 LOC TUI using raw ANSI codes
- Add src/tui.ts: entry point with dotenv loading
- Export TUI from src/ui/index.ts
- Add npm scripts: tui (bun) and tui:node (tsx)

Code review fixes:
- Remove unused HIDE_CURSOR constant
- Fix memory leak: remove close listener after resolve
- Fix spinner interval not cleared on close
- Use unknown instead of any for error type
- Pop failed user message from conversation on error

Run with: npm run tui

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix: cross-platform path handling and provider validation in TUI

- Use path.basename() instead of split('/').pop() for Windows compatibility
- Add provider validation to fail fast for non-Anthropic configs
- Add API key validation with clear error messages

Fixes issues from code review on PR #6.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* feat: add CI workflow, ESLint, Prettier, and pre-commit hooks

- Enhanced GitHub Actions CI with lint, typecheck, test, and build jobs
- Added ESLint configuration with TypeScript support
- Added Prettier configuration for consistent code formatting
- Added Husky pre-commit hooks with lint-staged
- Formatted all source files with Prettier
- Added npm scripts: lint, lint:fix, format, format:check, check

New scripts:
- npm run lint - Run ESLint
- npm run lint:fix - Auto-fix ESLint issues
- npm run format - Format with Prettier
- npm run format:check - Check formatting
- npm run check - Run all checks (typecheck + lint + format)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: robotlearning123

.github/workflows/ci.yml

@@ -2,23 +2,66 @@ name: CI
 
 on:
   push:
-    branches: [ main, typescript ]
+    branches: [main]
   pull_request:
-    branches: [ main, typescript ]
+    branches: [main]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
-  test:
-    name: Test on Node.js ${{ matrix.node-version }}
+  lint:
+    name: Lint & Format
     runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run ESLint
+        run: npm run lint
+
+      - name: Check Prettier formatting
+        run: npm run format:check
+
+  typecheck:
+    name: Type Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
 
+      - name: Run TypeScript type check
+        run: npm run typecheck
+
+  test:
+    name: Test (Node ${{ matrix.node-version }})
+    runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        node-version: [18.x, 20.x, 21.x]
+        node-version: ['20.x', '22.x']
 
     steps:
       - uses: actions/checkout@v4
 
-      - name: Use Node.js ${{ matrix.node-version }}
+      - name: Setup Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
@@ -27,23 +70,17 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
-      - name: Run type check
-        run: npm run typecheck
-
       - name: Run tests
         run: npm test
 
-      - name: Build
-        run: npm run build
-
-  lint:
-    name: Lint
+  build:
+    name: Build
     runs-on: ubuntu-latest
-
+    needs: [lint, typecheck, test]
     steps:
       - uses: actions/checkout@v4
 
-      - name: Use Node.js
+      - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
           node-version: '20.x'
@@ -52,5 +89,10 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
-      - name: Run type check
-        run: npm run typecheck
+      - name: Build
+        run: npm run build
+
+      - name: Verify build output
+        run: |
+          test -f dist/app.js
+          echo "Build successful!"

.husky/pre-commit

@@ -0,0 +1 @@
+npx lint-staged

.lintstagedrc

@@ -0,0 +1,5 @@
+{
+  "src/**/*.ts": ["eslint --fix", "prettier --write"],
+  "test/**/*.ts": ["eslint --fix", "prettier --write"],
+  "*.{json,yml,yaml}": ["prettier --write"]
+}

.prettierignore

@@ -0,0 +1,5 @@
+dist/
+node_modules/
+implementations/
+*.md
+package-lock.json

.prettierrc

@@ -0,0 +1,10 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "es5",
+  "printWidth": 100,
+  "bracketSpacing": true,
+  "arrowParens": "always",
+  "endOfLine": "lf"
+}

eslint.config.js

@@ -0,0 +1,43 @@
+import eslint from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+  eslint.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    ignores: [
+      'dist/**',
+      'node_modules/**',
+      'implementations/**',
+      '*.js',
+      '*.mjs',
+    ],
+  },
+  {
+    files: ['src/**/*.ts', 'test/**/*.ts'],
+    languageOptions: {
+      ecmaVersion: 2022,
+      sourceType: 'module',
+    },
+    rules: {
+      // TypeScript specific
+      '@typescript-eslint/no-unused-vars': ['warn', {
+        argsIgnorePattern: '^_',
+        varsIgnorePattern: '^_',
+      }],
+      '@typescript-eslint/no-explicit-any': 'warn',
+      '@typescript-eslint/explicit-function-return-type': 'off',
+      '@typescript-eslint/no-non-null-assertion': 'off',
+      '@typescript-eslint/no-require-imports': 'warn',
+      '@typescript-eslint/no-unused-expressions': 'warn',
+
+      // General
+      'no-console': 'off',
+      'prefer-const': 'warn',
+      'no-var': 'error',
+      'eqeqeq': ['error', 'always'],
+      'no-useless-escape': 'warn',
+      'no-control-regex': 'off',
+    },
+  }
+);