将数据库改用为mysql，弃用第三方websocket库，自实现websocket

[liangbm3]

No description provided.

[Copilot]

Pull Request Overview

This PR migrates the database from SQLite to MySQL and replaces the third-party WebSocket library with a custom WebSocket implementation. Key changes include implementing a MySQL connection pool architecture, new repository pattern for database operations, and maintaining the existing WebSocket functionality with custom code.

• Database migration from SQLite to MySQL with connection pooling and repository pattern
• Removal of third-party websocketpp dependency and implementation of custom WebSocket handling
• Code formatting improvements and header reorganization across utility and test files

Reviewed Changes

Copilot reviewed 91 out of 92 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
third_party/websocketpp	Removed third-party WebSocket library submodule
tests/utils/*.cpp	Code formatting improvements and header reorganization
tests/model/*.cpp	Updated model tests to use integer IDs and new field structures
tests/http/test_http_server.cpp	Removed HTTP server tests (file deleted)
tests/http/*.cpp	Code formatting improvements
tests/db/*.cpp	New database tests for MySQL repositories and connection management
tests/CMakeLists.txt	Updated build configuration for new MySQL-based tests
src/websocket/*.hpp/.cpp	Code formatting and header reorganization
src/utils/*.hpp/.cpp	Code formatting improvements and new SHA1 utility

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[Copilot]

Typo in directory name: respository should be repository in both include paths.

Suggested change

	#include "../../src/db/respository/room_repository.hpp"
	#include "../../src/db/respository/user_repository.hpp"
	#include "../../src/db/repository/room_repository.hpp"
	#include "../../src/db/repository/user_repository.hpp"

[Copilot]

Typo in directory name: respository should be repository in all source file paths.