feat: [KAN-18] user registration

[lianjin]

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name: Pull Request | 合并请求
about: user registration and activation
labels: ["feature"]

变更内容 | Changes

1. add register api
2. add activation api

相关 Issue | Related Issue

KAN-18 User Registration

变更类型 | Type of Change

• 新功能 Feature
• 修复 Bug Fix
• 文档 Documentation
• 样式优化 Style
• 重构 Refactor
• 性能优化 Performance
• 测试 Test
• 构建/CI Build/CI
• 其他 Other

检查清单 | Checklist

• 代码已通过本地测试（含主流浏览器/终端）| Code tested locally (including major browsers/terminals)
• 相关文档已更新（如有）| Documentation updated if needed
• 代码风格符合项目规范 | Code style follows project conventions
• 变更不会影响现有功能 | Changes do not break existing features
• 已自查无敏感信息泄露 | No sensitive info is leaked

变更影响 | Impact

none

测试说明 | Test Instructions

1. register with real email
2. password should have alpha and digit both and len >= 8
3. newly inactivated user will receive 6-lengh opt code, if user already activated, will receive error msg
4. call activate API with opt code, complete the activation step

其他说明 | Additional Notes

[Copilot]

Pull Request Overview

This PR implements user registration and activation functionality for the CeramiCraft user microservice, allowing new users to register with email/password and activate their accounts via email verification codes.

• Add user registration API with password validation and email verification
• Add user activation API with 6-digit verification codes
• Implement email service integration for sending activation codes

Reviewed Changes

Copilot reviewed 19 out of 20 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
server/service/register.go	Core registration service with user creation and activation logic
server/service/register_test.go	Comprehensive unit tests for registration and activation flows
server/http/api/register.go	HTTP API endpoints for registration and activation
server/http/router/router.go	Router configuration with custom password validation
server/proxy/email.go	Email service implementation for sending activation codes
server/repository/dao/user_activation_dao.go	Data access layer for user activation records
server/http/data/user.go	Request/response data structures with validation
server/config/config.go	Configuration updates for email service

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[Copilot]

Pull Request Overview

Copilot reviewed 19 out of 20 changed files in this pull request and generated 4 comments.

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[Copilot]

Pull Request Overview

Copilot reviewed 19 out of 20 changed files in this pull request and generated 6 comments.

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[Copilot]

Pull Request Overview

Copilot reviewed 19 out of 20 changed files in this pull request and generated 2 comments.

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[Copilot]

Pull Request Overview

Copilot reviewed 19 out of 20 changed files in this pull request and generated 4 comments.

---

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