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/test/java/tech/easyflow/skill/gitimport/GitRepositoryAccessPolicyTest.java

@@ -2,6 +2,7 @@ package tech.easyflow.skill.gitimport;
 
 import org.junit.Before;
 import org.junit.Test;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import tech.easyflow.common.web.exceptions.BusinessException;
 
 import java.io.IOException;
@@ -11,6 +12,7 @@ import java.util.concurrent.atomic.AtomicInteger;
 import java.util.Set;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertThrows;
 
 /**
@@ -30,6 +32,20 @@ public class GitRepositoryAccessPolicyTest {
         policy = new GitRepositoryAccessPolicy(properties);
     }
 
+    /**
+     * Spring 容器应选择生产构造器完成组件实例化。
+     */
+    @Test
+    public void springContextUsesProductionConstructor() {
+        try (AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext()) {
+            context.registerBean(SkillGitImportProperties.class, SkillGitImportProperties::new);
+            context.register(GitRepositoryAccessPolicy.class);
+            context.refresh();
+
+            assertNotNull(context.getBean(GitRepositoryAccessPolicy.class));
+        }
+    }
+
     /**
      * 仓库地址允许省略 .git 后缀并移除结尾斜线。
      */