chore(build): 删除Spring Boot 4升级相关备份文件和分析文档

- 删除 .openclaw/workspace-state.json 工作区状态文件
- 删除 healthlink-his-server/pom.xml.bak Maven配置备份文件
- 删除 SPRINGBOOT_4_UPGRADE_ANALYSIS.md 升级分析报告
- 删除 SPRINGBOOT_4_UPGRADE_GUIDE.md 升级操作手册

pom.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.healthlink.his</groupId>
+    <artifactId>healthlink-his-parent</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>pom</packaging>
+
+    <name>HealthLink-HIS</name>
+    <description>HealthLink 医院信息系统</description>
+
+    <modules>
+        <module>healthlink-his-server</module>
+    </modules>
+</project>