feat: 添加聊天会话页面，支持会话ID和标题显示，优化会话列表和搜索功能

features/im/hooks/use-conversation-list.ts

@@ -120,10 +120,19 @@ function toViewModel(item: OpenIMConversationItem): ConversationItem {
 export function useConversationList() {
   const [conversations, setConversations] = useState<OpenIMConversationItem[]>([]);
   const [isLoading, setIsLoading] = useState(true);
+  const [isRefreshing, setIsRefreshing] = useState(false);
   const [isLoggedIn, setIsLoggedIn] = useState(false);
   const [error, setError] = useState<string | null>(null);
 
-  const reload = useCallback(async () => {
+  const loadConversations = useCallback(async (mode: "initial" | "refresh" | "silent") => {
+    const startedAt = Date.now();
+    if (mode === "initial") {
+      setIsLoading(true);
+    }
+    if (mode === "refresh") {
+      setIsRefreshing(true);
+    }
+
     try {
       setError(null);
       const status = await OpenIMSDK.getLoginStatus();
@@ -141,13 +150,26 @@ export function useConversationList() {
       const message = err instanceof Error ? err.message : "拉取会话失败";
       setError(message);
     } finally {
+      if (mode === "refresh") {
+        const elapsed = Date.now() - startedAt;
+        const minVisibleMs = 420;
+        if (elapsed < minVisibleMs) {
+          await new Promise((resolve) => setTimeout(resolve, minVisibleMs - elapsed));
+        }
+      }
+
       setIsLoading(false);
+      setIsRefreshing(false);
     }
   }, []);
 
+  const reload = useCallback(async () => {
+    await loadConversations("refresh");
+  }, [loadConversations]);
+
   useEffect(() => {
-    reload();
-  }, [reload]);
+    loadConversations("initial");
+  }, [loadConversations]);
 
   useEffect(() => {
     const onConversationChanged = (changed: OpenIMConversationItem[]) => {
@@ -159,7 +181,7 @@ export function useConversationList() {
     };
 
     const onRecvNewMessages = () => {
-      reload();
+      loadConversations("silent");
     };
 
     OpenIMSDK.on(OpenIMEvent.OnConversationChanged, onConversationChanged);
@@ -171,13 +193,14 @@ export function useConversationList() {
       OpenIMSDK.off(OpenIMEvent.OnNewConversation, onNewConversation);
       OpenIMSDK.off(OpenIMEvent.OnRecvNewMessages, onRecvNewMessages);
     };
-  }, [reload]);
+  }, [loadConversations]);
 
   const items = useMemo(() => conversations.map(toViewModel), [conversations]);
 
   return {
     items,
     isLoading,
+    isRefreshing,
     isLoggedIn,
     error,
     reload,