# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [v0.5.0-alpha] - 2026-01-29

### Added

- **Reminder Features (P4)**
  - Reminder grouping by time (today/tomorrow/this week/later/missed)
  - Overdue reminders displayed in red Alert box
  - Reminder cards with hover effects and quick actions
  - Complete checkbox functionality
  - Edit/Delete menu options

- **Components**
  - `ReminderList` -分组列表组件
  - `ReminderCard` - 提醒卡片组件

### Fixed

- DateInput component type handling (string to Date conversion)

### Technical

- Time-based grouping logic with useMemo optimization
- Color-coded cards based on status (completed/overdue/today/future)
- Smooth hover animations and transitions

## [v0.4.0-alpha] - 2026-01-29

### Added

- **Anniversary Features (P3)**
  - Anniversary CRUD operations
  - Countdown calculation (yearly/monthly/none repeat)
  - Lunar date support
  - Built-in holidays display
  - Holiday countdown display

- **Components**
  - `AnniversaryList` - 纪念日列表组件
  - `AnniversaryCard` - 纪念日卡片组件

- **Utilities**
  - `countdown.ts` - 倒计时计算工具
  - `holidays.ts` - 内置节假日数据
  - Lunar-javascript integration for Chinese lunar dates

### Fixed

- Lunar date conversion edge cases
- Leap year February 29 handling
- Month-end date overflow handling
- Holiday is_lunar flag configuration

## [v0.2.0-alpha] - 2026-01-29

### Added

- **Authentication System**
  - User registration with email/password
  - User login with JWT access/refresh tokens
  - Token refresh endpoint
  - Logout functionality
  - Protected routes middleware

- **API Endpoints**
  - `POST /api/auth/register` - User registration
  - `POST /api/auth/login` - User login
  - `POST /api/auth/logout` - User logout
  - `GET /api/auth/me` - Get current user
  - `POST /api/auth/refresh` - Refresh access token

- **Security Features**
  - Password hashing with bcryptjs (work factor 12)
  - Rate limiting (10 login attempts/15min, 20 registrations/hour)
  - Input validation with Zod
  - JWT authentication middleware
  - Helmet security headers

- **Frontend**
  - API client with token management
  - Request interceptor for Authorization header
  - React + Vite project setup
  - Mantine UI components integration
  - Tailwind CSS configuration

### Changed

- Database provider switched from Supabase to self-hosted Node.js backend
- Schema updated for SQLite (development) and PostgreSQL (production)

### Technical

- **Backend**: Express.js + TypeScript + Prisma ORM
- **Frontend**: React 18 + Vite + Mantine + Tailwind CSS
- **Database**: SQLite (dev) / PostgreSQL (prod)
- **Authentication**: JWT with access token (7d) + refresh token (30d)

## [v0.1.0-alpha] - 2026-01-28

### Added

- Project initialization
- Frontend React + Vite project
- Backend Node.js + Express project
- Prisma ORM setup
- Initial database schema

[Unreleased]: https://github.com/your-repo/compare/v0.5.0-alpha...HEAD
[v0.5.0-alpha]: https://github.com/your-repo/releases/tag/v0.5.0-alpha
[v0.4.0-alpha]: https://github.com/your-repo/releases/tag/v0.4.0-alpha
[v0.2.0-alpha]: https://github.com/your-repo/releases/tag/v0.2.0-alpha
[v0.1.0-alpha]: https://github.com/your-repo/releases/tag/v0.1.0-alpha