Merge commit 'ae0f72d' into codex/20260928-agent-refresh-a6d109b3-agent-refresh

src/pages/Chat/TeacherChatPanel.tsx

@@ -446,7 +446,6 @@ export function TeacherChatPanel({
                   {request.suggestedQuestions?.map((question) => <button key={question} type="button" disabled={helpUnavailable} onClick={() => void send({ text: question })} className="consultation-follow-up"><span className="min-w-0 flex-1">{question}</span><ChevronRight className="h-4 w-4 shrink-0 opacity-70" aria-hidden="true" /></button>)}
                 </div>
                 <button type="button" disabled={helpUnavailable} onClick={askForGuidance} className="consultation-guided-help min-h-10 text-left text-xs leading-6 underline decoration-current/30 underline-offset-4 disabled:cursor-not-allowed disabled:opacity-50">我也说不清，你带我看看</button>
-                <p className="text-[11px] leading-5 text-muted-foreground">也可以直接在下面说说你的想法。</p>
               </>}
             {['failed', 'cancelled', 'interrupted'].includes(request.status) && <button type="button" disabled={helpUnavailable} onClick={askForSuggestions} className="consultation-guided-help min-h-10 text-xs underline underline-offset-4 disabled:opacity-50">再请智能体看看</button>}
           </> : request.response ? <TeacherReply text={request.response} /> : <div className="text-[13px] leading-7">{['running', 'preparing'].includes(request.status) ? <span role="status" className="inline-flex items-center gap-2 text-muted-foreground"><Loader2 className="h-3.5 w-3.5 animate-spin motion-reduce:animate-none" />{request.discussionContext ? '正在梳理你的新想法…' : `${label}正在想…`}</span> : ['cancelled', 'interrupted'].includes(request.status) ? '这次先停在这里。想继续时可以再说说。' : ''}</div>}
@@ -460,7 +459,6 @@ export function TeacherChatPanel({
           </details>}
           {request.progress && ['running', 'preparing'].includes(request.status) && <p role="status" className="text-xs text-muted-foreground">{request.progress}</p>}
           {(request.truncatedMessages ?? 0) > 0 && <p className="text-xs text-muted-foreground">{draftRevision ? '较长的上下文已节选。' : '较长的上下文已节选，智能体可按需读取原文。'}</p>}
-          {request.omittedMessages > 0 && <p className="text-[10px] text-muted-foreground">本轮参考了较近的讨论，省略了 {request.omittedMessages} 条较早内容。</p>}
           {request.error && <p className="text-xs text-destructive">{request.error}</p>}
           {onBringBack && request.response && request.intent !== 'suggestions' && request.status === 'completed' && <div className="text-[11px] text-muted-foreground">
             <button onClick={() => onBringBack(request.response)}>带回主会话草稿</button>
@@ -488,7 +486,7 @@ export function TeacherChatPanel({
         {references.length > 0 && <div className="mb-2 rounded-lg bg-white p-3 text-xs"><p className="line-clamp-3 whitespace-pre-wrap">{references.map((ref) => ref.text).join('\n')}</p><button type="button" className="mt-1 underline" onClick={removeReferences}>移除引用</button></div>}
         <div className="consultation-composer rounded-2xl border bg-white p-3 focus-within:ring-2 focus-within:ring-black/5">
           {activeFocus && <DiscussionFocus label={activeFocus.label} onClear={() => setFocus(null)} />}
-          <textarea ref={inputRef} aria-label={`向${label}提问`} value={text} disabled={busy} maxLength={6000} onChange={(e) => changeText(e.target.value)} placeholder={`想和${label}聊些什么？`} rows={2}
+          <textarea ref={inputRef} aria-label={`向${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 items-center justify-between gap-2" data-testid="consultation-composer-actions">