完成动态删除功能

src/main/java/com/bao/dating/controller/PostController.java

@@ -41,4 +41,16 @@ public class PostController {
         Post result = postService.createPost(postRequestDTO);
         return Result.success(ResultCode.SUCCESS_REVIEW, "动态发布成功，等待审核。", result);
     }
+
+    /**
+     * 删除动态
+     *
+     * @param postId 动态ID
+     * @return 删除结果
+     */
+    @DeleteMapping("/{postId}")
+    public Result<String> deleteById(@PathVariable Integer postId){
+        postService.deletePostById(postId);
+        return Result.success(ResultCode.SUCCESS_DELETE, "动态删除成功", null);
+    }
 }