feat(deploy): add deployment script and update Docker docs

- Add deploy.sh for automated Docker build and push to private registry
- Lowercase Docker image name to comply with registry requirements
- Update README with concrete Docker run examples and configuration

README.MD

@@ -1,7 +1,7 @@
 # 图书管理系统
 
 <p align="center">
-  <img src="https://img.shields.io/badge/version-0.1-blue" alt="version">
+  <img src="https://img.shields.io/badge/version-v0.1-blue" alt="version">
   <img src="https://img.shields.io/badge/Kotlin-2.2.21-purple?logo=kotlin" alt="Kotlin">
   <img src="https://img.shields.io/badge/Spring_Boot-4.0.6-green?logo=springboot" alt="Spring Boot">
   <img src="https://img.shields.io/badge/MySQL-8.0-orange?logo=mysql" alt="MySQL">
@@ -221,9 +221,29 @@ java -jar build/libs/bookMgr-0.1.jar
 
 ### Docker
 
-Dockerfile 待补充。镜像后续发布至私有 Gitea 仓库：
+镜像基于 `bellsoft/liberica-runtime-container:jre-21-slim-musl`，JVM 参数 `-Xmx512m -Dfile.encoding=UTF-8`，暴露 8080 端口。
 
-[git.msksbr.com/msksbr/bookMgr](https://git.msksbr.com/msksbr/bookMgr)
+```bash
+# 拉取镜像
+docker pull git.msksbr.com/msksbr/bookmgr:v0.1
+
+# 运行
+docker run -d \
+  --name bookmgr \
+  -p 8080:8080 \
+  -e DB_DRIVER=com.mysql.cj.jdbc.Driver \
+  -e DB_TYPE=mysql \
+  -e DB_URL=your-db-host \
+  -e DB_PORT=3306 \
+  -e DB_NAME=bookmgr \
+  -e DB_USER=root \
+  -e DB_PASSWORD=your-password \
+  -e JWT_SECRET=your-secret \
+  -e LOG_PATH=/var/log/bookmgr \
+  git.msksbr.com/msksbr/bookmgr:v0.1
+```
+
+镜像托管于私有 Gitea 仓库：[git.msksbr.com/msksbr/bookMgr](https://git.msksbr.com/msksbr/bookMgr)
 
 ### Docker Compose