fix: rename manager module to git.zkcoi.com/zkcoi/Meshray-Manager

- go.mod module path matches repo zkcoi/Meshray-Manager (case-distinct from zkcoi/Meshray/core)
- rewrite internal imports meshray/{internal,web,pkg} -> Meshray-Manager/... (core refs kept)
- sync README.md / install.sh repo URLs; add CHANGELOG entry

README.md

@@ -4,8 +4,8 @@
 
 > **💤 项目状态：个人练手的 Vibecoding 项目，目前已暂时搁置，后续有时间再继续完善。**
 
-[![Version](https://img.shields.io/badge/version-2.3.x-blue.svg)](https://git.zkcoi.com/zkcoi/meshray)
-[![Status](https://img.shields.io/badge/status-paused-lightgrey.svg)](https://git.zkcoi.com/zkcoi/meshray)
+[![Version](https://img.shields.io/badge/version-2.3.x-blue.svg)](https://git.zkcoi.com/zkcoi/Meshray-Manager)
+[![Status](https://img.shields.io/badge/status-paused-lightgrey.svg)](https://git.zkcoi.com/zkcoi/Meshray-Manager)
 [![Go Version](https://img.shields.io/badge/go-1.21+-green.svg)](https://golang.org)
 [![License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
 
@@ -172,7 +172,7 @@ meshray/
 
 ```bash
 # 克隆项目
-git clone https://git.zkcoi.com/zkcoi/meshray.git
+git clone https://git.zkcoi.com/zkcoi/Meshray-Manager.git
 cd meshray
 
 # 安装依赖