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Discover Problem → Seek Solution → Register and Use → Daily Usage → Recommend to Others

├── User Module
│   ├── Registration & Login
│   ├── Personal Profile
│   └── Account Settings
├── Core Function Module
│   ├── Function A
│   ├── Function B
│   └── Function C
└── Auxiliary Function Module
    ├── Notification Center
    └── Help Center

POST /api/auth/register
Request:
{
  "email": "user@example.com",
  "password": "password123",
  "verifyCode": "123456"
}

Response:
{
  "success": true,
  "data": {
    "userId": 12345,
    "token": "jwt_token_here"
  },
  "message": "Registration successful"
}

Frontend: React + TypeScript + Ant Design
Backend: Node.js + Express + TypeScript
Database: MySQL + Redis
Deployment: Docker + Kubernetes

-- User table
CREATE TABLE users (
  id BIGINT PRIMARY KEY AUTO_INCREMENT,
  email VARCHAR(255) UNIQUE,
  phone VARCHAR(20) UNIQUE,
  password_hash VARCHAR(255),
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

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Sprint Cycle: 2 weeks

Sprint Process:
1. Sprint Planning
   - Define Sprint goal
   - Select user stories
   - Decompose tasks and estimate effort

2. Daily Standup
   - What was completed yesterday
   - What is planned for today
   - Any obstacles encountered

3. Sprint Review
   - Demonstrate completed functions
   - Collect feedback
   - Update product backlog

4. Sprint Retrospective
   - Summarize what went well
   - Identify improvement opportunities
   - Formulate action plans

As [user role]
I want [function description]
So that [value/goal]

Acceptance Criteria:
- [ ] Criterion 1
- [ ] Criterion 2
- [ ] Criterion 3

Estimate: 5 story points
Priority: P0
Dependency: US-001

Project Document Structure:
├── PRD/
│   ├── Product Requirement Document.md
│   └── Functional Specification.md
├── Design/
│   ├── UI Design Drafts
│   └── Interactive Prototypes
├── Tech/
│   ├── Technical Solution.md
│   ├── API Documentation.md
│   └── Database Design.md
├── Test/
│   ├── Test Plan.md
│   └── Test Cases.md
└── Release/
    ├── Launch Plan.md
    └── Launch Checklist.md