[Doc] add project wiki

[xxzuo]

Purpose of this pull request

Description

This PR adds comprehensive project documentation (RepoWiki) to the .qoder/repowiki directory, providing detailed technical documentation for the DataVines project.

What's Included

The RepoWiki contains the following documentation sections (in Chinese):

1. Project Overview (项目概述.md) - Comprehensive introduction to DataVines including:

   • Project background and design goals
   • Core features: Data Catalog, Data Quality, Data Profiling
   • Plugin-based architecture design
   • Multiple execution modes
   • High availability and easy deployment
   • System architecture and technology stack
   • SPI plugin mechanism
   • Comparison with other data quality tools

2. Quick Start Guide (快速入门.md) - Step-by-step guide covering:

   • Environment prerequisites (JDK 8+, Maven 3.6.1+, MySQL/PostgreSQL)
   • Database initialization
   • Service startup (direct and Docker methods)
   • Minimal configuration examples
   • End-to-end usage examples
   • OS-specific notes (Linux, Windows, macOS)
   • Troubleshooting common issues

3. Developer Guide (开发者指南.md) - Detailed development documentation:

   • Project structure and module overview
   • Development environment setup
   • Build system and dependency management
   • Code style and standards (Checkstyle, ESLint)
   • Unit testing and integration testing
   • Code submission workflow
   • Code review standards
   • Debugging and performance analysis
   • Branch strategy and release process
   • New contributor onboarding guide

4. Architecture Design (架构设计/) - In-depth technical architecture:

   • System architecture design
   • Plugin mechanism
   • Data flow design
   • Core architecture components
   • Registry center mechanism
   • Scheduling mechanism

5. Module Details (模块详解/) - Documentation for each module

6. Plugin Development (插件开发/) - Guide for developing plugins

7. API Reference (API参考/) - API documentation

8. Deployment Guide (部署指南/) - Deployment instructions

9. Configuration (配置说明/) - Configuration documentation

10. Database Design (数据库设计/) - Database schema documentation

11. Core Features (核心功能/) - Feature documentation

Benefits

1. Improved Onboarding Experience: New contributors can quickly understand the project structure and get started with development.

2. Reduced Learning Curve: Comprehensive documentation helps developers understand the microkernel architecture and SPI plugin mechanism.

3. Better Code Quality: Clear coding standards and review guidelines ensure consistent code quality across contributions.

4. Easier Troubleshooting: Detailed troubleshooting guides reduce the time spent on common setup and configuration issues.

5. Enhanced Collaboration: Standardized documentation makes it easier for distributed teams to collaborate effectively.

6. Knowledge Preservation: Technical decisions and architecture designs are documented for future reference.

7. Community Growth: Better documentation lowers the barrier for new contributors, helping to grow the community.

Technical Highlights Documented

• Microkernel architecture with SPI plugin mechanism
• Support for 27 built-in data quality check rules
• Multiple execution engines (Spark, Local/JDBC)
• Plugin-based design for connectors, metrics, notifications, and registries
• Decentralized server architecture with horizontal scaling
• Multi-datasource support (MySQL, PostgreSQL, ClickHouse, etc.)

Notes

• Documentation is currently in Chinese
• All documentation includes source code references for accuracy
• Mermaid diagrams are used for visualizing architecture
• Each document follows a consistent structure with table of contents

---

Type of Change: Documentation

Check list

• Code changed are covered with tests, or it does not need tests for reason:
• Change does not need document change