searchpost

Change-Id: I3b471ad217a958e2e8bf22c005b1a3fd36454151
diff --git a/src/main/java/com/example/g8backend/service/IPostService.java b/src/main/java/com/example/g8backend/service/IPostService.java
index f914946..82c792e 100644
--- a/src/main/java/com/example/g8backend/service/IPostService.java
+++ b/src/main/java/com/example/g8backend/service/IPostService.java
@@ -14,4 +14,6 @@
     Long getPostLikeCount(Long postId);
     void likePost(Long userId, Long postId);
     void unlikePost(Long userId, Long postId);
+
+    List<Post> searchPosts(String keyword, List<Long> tagIds, String author); // 更新为支持多个标签
 }