feat(agent): 移除未使用的导入并简化条件表达式

src/memory/knowledge.rs

@@ -123,14 +123,12 @@ impl KnowledgeStore {
         let mut results = Vec::new();
         let index = self.index.lock().unwrap();
         for entry in index.iter() {
-            if entry.title.to_lowercase().contains(&needle)
+            if (entry.title.to_lowercase().contains(&needle)
                 || entry.summary.to_lowercase().contains(&needle)
-                || entry.tags.iter().any(|t| t.to_lowercase().contains(&needle))
-            {
-                if let Some(page) = self.get_page(&entry.id).await? {
+                || entry.tags.iter().any(|t| t.to_lowercase().contains(&needle)))
+                && let Some(page) = self.get_page(&entry.id).await? {
                     results.push(page);
                 }
-            }
         }
         Ok(results)
     }