feat(image): 添加图片清理功能- 新增 FileStorageService 用于文件上传、下载和删除操作- 实现 ImageCleanupService 清理冗余图片

- 添加 ImageCleanupController 提供手动清理图片的 API
- 创建 ImageCleanupScheduler定时清理冗余图片
- 更新相关 Mapper 接口，增加必要的查询和删除方法

biji-houdaun/src/main/java/com/test/bijihoudaun/controller/ImageCleanupController.java

@@ -0,0 +1,32 @@
+package com.test.bijihoudaun.controller;
+
+import com.test.bijihoudaun.service.ImageCleanupService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * 图片清理控制器
+ * 提供手动触发清理冗余图片的API端点
+ */
+@RestController
+@RequestMapping("/api/admin")
+public class ImageCleanupController {
+
+    @Autowired
+    private ImageCleanupService imageCleanupService;
+
+    /**
+     * 手动触发清理冗余图片
+     * @return 清理结果
+     */
+    @PostMapping("/cleanup-images")
+    @PreAuthorize("hasRole('ADMIN')")
+    public ResponseEntity<?> cleanupImages() {
+        int deletedCount = imageCleanupService.cleanupRedundantImages();
+        return ResponseEntity.ok().body("成功清理 " + deletedCount + " 个冗余图片");
+    }
+}