feat: 添加swagger公共模块并重构API文档依赖

- 新增 aioj-backend-common-swagger 模块用于统一管理API文档相关依赖
- 从 BOM 中移除 knife4j 依赖，改为按需引入到各服务模块
- 更新 auth、gateway、user-service、upms 等服务的 pom.xml 配置
- 显式指定 springdoc-openapi 版本以兼容 Spring Boot 3.5.x
- 添加依赖排除以避免版本冲突

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

aioj-backend-upms/aioj-backend-upms-api/pom.xml

@@ -18,6 +18,32 @@
     </properties>
 
     <dependencies>
+        <!-- SpringDoc OpenAPI - 显式指定版本以兼容 Spring Boot 3.5.x -->
+        <dependency>
+            <groupId>org.springdoc</groupId>
+            <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+            <version>2.8.4</version>
+        </dependency>
+        <dependency>
+            <groupId>com.github.xiaoymin</groupId>
+            <artifactId>knife4j-openapi3-jakarta-spring-boot-starter</artifactId>
+            <version>4.5.0</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.springdoc</groupId>
+                    <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.springdoc</groupId>
+                    <artifactId>springdoc-openapi-starter-webmvc-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.springdoc</groupId>
+                    <artifactId>springdoc-openapi-starter-common</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
         <dependency>
             <groupId>cn.meowrain</groupId>
             <artifactId>aioj-backend-common-core</artifactId>