add tests update requirements.txt - add workflow for github

.babelrc

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+{
+    "presets": [
+      "@babel/preset-env",
+      "@babel/preset-react",
+      "@babel/preset-typescript"
+    ]
+  }

.github/workflows/ci.yml

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+name: Claude Plus CI
+
+on:
+  push:
+    branches: [ "main" ]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v4
+      with:
+        python-version: "3.12"
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install flake8 pytest
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Test with pytest
+      run: |
+        pytest tests/test_backend.py
+
+  node-check:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Use Node.js 18
+      uses: actions/setup-node@v3
+      with:
+        node-version: '18'
+    - name: Install dependencies
+      run: |
+        npm ci
+    - name: Run basic test
+      run: |
+        npm test
+
+  docker-build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Build the Docker image
+      run: docker build . --file docker/Dockerfile --tag claudeplus:$(date +%s)

frontend/eslint.config.js

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+import globals from "globals";
+import pluginJs from "@eslint/js";
+import tseslint from "typescript-eslint";
+import pluginReactConfig from "eslint-plugin-react/configs/recommended.js";
+import { fixupConfigRules } from "@eslint/compat";
+
+export default [
+  { files: ["**/*.{js,mjs,cjs,ts,jsx,tsx}"] },
+  { languageOptions: { parserOptions: { ecmaFeatures: { jsx: true } } } },
+  { languageOptions: { globals: globals.browser } },
+  pluginJs.configs.recommended,
+  tseslint.configs.recommended,
+  fixupConfigRules(pluginReactConfig),
+];