fix: 明确 Skill Git 访问策略注入构造器

- 标记生产构造器供 Spring 容器稳定选择

- 补充组件实例化回归测试

easyflow-modules/easyflow-module-skill/src/main/java/tech/easyflow/skill/gitimport/GitRepositoryAccessPolicy.java

@@ -1,5 +1,6 @@
 package tech.easyflow.skill.gitimport;
 
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 import tech.easyflow.common.web.exceptions.BusinessException;
 
@@ -28,10 +29,17 @@ public class GitRepositoryAccessPolicy {
      *
      * @param properties Git 导入配置
      */
+    @Autowired
     public GitRepositoryAccessPolicy(SkillGitImportProperties properties) {
         this(properties, InetAddress::getAllByName);
     }
 
+    /**
+     * 创建可替换主机解析器的 Git 地址访问策略。
+     *
+     * @param properties Git 导入配置
+     * @param hostResolver 主机解析器
+     */
     GitRepositoryAccessPolicy(SkillGitImportProperties properties, HostResolver hostResolver) {
         this.properties = properties;
         this.hostResolver = hostResolver;