(feature)(chat-sdk) modify the method for obtaining similar questions and recommended drill-down dimensions; do not display assistant button when there is only one assistant (#514)

webapp/packages/chat-sdk/src/Chat/ChatFooter/index.tsx

@@ -311,10 +311,12 @@ const ChatFooter: ForwardRefRenderFunction<any, Props> = (
             <div>历史对话</div>
           </div>
         )}
-        <div className={styles.toolItem} onClick={onOpenAgents}>
-          <IconFont type="icon-zhinengzhuli" className={styles.toolIcon} />
-          <div>智能助理</div>
-        </div>
+        {agentList?.length > 1 && (
+          <div className={styles.toolItem} onClick={onOpenAgents}>
+            <IconFont type="icon-zhinengzhuli" className={styles.toolIcon} />
+            <div>智能助理</div>
+          </div>
+        )}
         {!isMobile && (
           <div className={styles.toolItem} onClick={onOpenShowcase}>
             <IconFont type="icon-showcase" className={styles.toolIcon} />