feat(testing): 为mini-charts添加Jest配置使用共享测试工具包

为mini-charts包添加jest.config.cjs配置文件，使用共享的
@d8d/mini-testing-utils测试工具包，与其他mini UI包保持一致。

## 新增文件
- mini-ui-packages/mini-charts/jest.config.cjs

## 配置内容
- preset: ts-jest
- setupFilesAfterEnv: @d8d/mini-testing-utils/setup
- moduleNameMapper使用mini-testing-utils的mock文件

🤖 Generated with [Claude Code](https://claude.com/claude-code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

mini-ui-packages/mini-charts/jest.config.cjs

@@ -0,0 +1,38 @@
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'jsdom',
+  setupFilesAfterEnv: ['@d8d/mini-testing-utils/setup'],
+  moduleNameMapper: {
+    '^@/(.*)$': '<rootDir>/src/$1',
+    '^~/(.*)$': '<rootDir>/tests/$1',
+    '^@tarojs/taro$': '@d8d/mini-testing-utils/testing/taro-api-mock.ts',
+    '\\.(css|less|scss|sass)$': '@d8d/mini-testing-utils/testing/style-mock.js',
+    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$':
+      '@d8d/mini-testing-utils/testing/file-mock.js'
+  },
+  testMatch: [
+    '<rootDir>/tests/**/*.spec.{ts,tsx}',
+    '<rootDir>/tests/**/*.test.{ts,tsx}'
+  ],
+  collectCoverageFrom: [
+    'src/**/*.{ts,tsx}',
+    '!src/**/*.d.ts',
+    '!src/**/index.{ts,tsx}',
+    '!src/**/*.stories.{ts,tsx}'
+  ],
+  coverageDirectory: 'coverage',
+  coverageReporters: ['text', 'lcov', 'html'],
+  testPathIgnorePatterns: [
+    '/node_modules/',
+    '/dist/',
+    '/coverage/'
+  ],
+  transform: {
+    '^.+\\.(ts|tsx)$': 'ts-jest',
+    '^.+\\.(js|jsx)$': 'babel-jest'
+  },
+  transformIgnorePatterns: [
+    '/node_modules/(?!(swiper|@tarojs)/)'
+  ],
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json']
+}