style(teacher): use the playful continue button in the composer

src/pages/Chat/TeacherChatPanel.tsx

@@ -355,7 +355,7 @@ export function TeacherChatPanel({
     (request) => request.status === 'preparing' || request.status === 'running'
   );
   const helpUnavailable = busy || !topicEnabled || Boolean(running);
-  const askForSuggestions = () => void send({ text: '给我一点提示', intent: 'suggestions' });
+  const askForSuggestions = () => void send({ text: '继续看看👀', intent: 'suggestions' });
   const changeText = (next: string) => { setText(next); persistDraft(next, references, pending.current); };
   const removeReferences = () => { setReferences([]); persistDraft(text, [], pending.current); };
   const questions = definition?.suggested_questions ?? [];
@@ -444,9 +444,9 @@ export function TeacherChatPanel({
           <textarea ref={inputRef} aria-label={`向${label}提问`} value={text} disabled={busy} maxLength={6000} onChange={(e) => changeText(e.target.value)} placeholder="和老师聊聊" rows={2}
             onKeyDown={(e) => { if (e.key === 'Enter' && !e.shiftKey && !e.nativeEvent.isComposing) { e.preventDefault(); void send(); } }}
             className="min-h-[60px] w-full resize-none border-0 bg-transparent text-[13px] leading-6 outline-none placeholder:text-muted-foreground/65" />
-          <div className="mt-2 flex min-h-9 items-center justify-between gap-2" data-testid="consultation-composer-actions">
+          <div className="mt-2 flex min-h-11 items-center justify-between gap-2" data-testid="consultation-composer-actions">
             <div className="min-w-0 flex-1">
-              {!draftRevision && !text.trim() && <button type="button" disabled={helpUnavailable} onClick={askForSuggestions} className="consultation-hint flex min-h-9 cursor-pointer items-center gap-1 rounded-md px-1 text-[13px] transition-colors disabled:cursor-not-allowed disabled:opacity-50">给我一点提示<ChevronRight className="h-3.5 w-3.5" aria-hidden="true" /></button>}
+              {!draftRevision && !text.trim() && <button type="button" disabled={helpUnavailable} onClick={askForSuggestions} className="consultation-hint">继续看看👀</button>}
             </div>
             {running ? <button type="button" className="rounded-lg border px-3 py-2 text-xs" onClick={() => void teacherApi.cancel(topicBase, topic!.id, running.id).then(consume).catch(() => setError('暂时无法停止，请稍后重试。'))}>停止回复</button>
             : <button type="submit" aria-label="提问" title={busy ? '正在发送…' : '发送'} disabled={busy || !topicEnabled || !text.trim()} className="consultation-send flex h-8 w-8 items-center justify-center rounded-full text-white disabled:opacity-30"><ArrowUp className="h-4 w-4" /></button>}