Add End-to-End Tests with Playwright

[FerdinandSu]

Description / 描述

English:
Add end-to-end tests for critical user flows using Playwright. This ensures the entire application works correctly from the user's perspective.

User flows to test:

• User creates a new entry
• User edits an existing entry
• User filters entries by date range
• User manages categories
• User manages types
• User views dashboard statistics
• Error handling scenarios

Tech Stack:

• Playwright for E2E testing
• TypeScript for test code
• GitHub Actions for CI integration

中文:
使用 Playwright 为关键用户流程添加端到端测试。这确保整个应用程序从用户角度正常工作。

Difficulty / 难度

Medium-Hard / 中等-困难

Estimated Time / 预计时间

8-10 hours

Acceptance Criteria / 验收标准

• Install and configure Playwright
• Write E2E tests in TypeScript
• Cover all critical user flows
• Tests run in multiple browsers (Chrome, Firefox, Safari)
• Tests run in CI/CD pipeline
• Include visual regression tests (optional)
• PR MUST include screenshots/videos of test runs
• README with instructions to run tests locally

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