feat: 实现跨端引用回复协议，新增 QuoteBar 组件支持消息引用

本次提交实现了与 iOS 对齐的跨端消息引用协议，新增 QuoteBar 组件用于渲染引用消息栏，重构发送逻辑支持文本和媒体消息的引用功能。主要改动包括：
- 新增 reply.ts 处理引用数据的构建和解析
- 新增 QuoteBar 组件渲染引用消息预览
- 重构发送逻辑，将引用快照放入消息头部而非内容
- 调整代理配置指向本地开发环境
- 优化消息操作权限，支持名片和媒体消息引用

web/src/features/messages/MessageBubble.tsx

@@ -16,6 +16,8 @@ import {
 } from '@/lib/messages/dispatch';
 import { renderDrafty } from '@/lib/messages/drafty';
 import { AudioAttachment, FileAttachment, ImageAttachment, VideoAttachment } from '@/features/messages/AttachmentPreview';
+import { QuoteBar } from '@/features/messages/QuoteBar';
+import { parseReplyHead } from '@/lib/messages/reply';
 import { formatBubbleTime, formatEventTimestamp } from '@/lib/messages/time';
 import { isFailedStatus, isSendingStatus, outgoingStatusLabel } from '@/lib/messages/status';
 import { groupSenderLabel } from '@/lib/messages/sender-name';
@@ -74,6 +76,10 @@ interface MessageRowProps {
   highlighted?: boolean;
   onToggleSelect?: (seq: number) => void;
   onContextMenu?: (e: React.MouseEvent, msg: StoredMessage) => void;
+  /** Resolves a QUOTED message's sender uid (from head["x-im-reply"].from) to a display label.
+   *  Owned by ConversationView so group remark/nickname resolution stays in one place; QuoteBar
+   *  must never print a raw uid. */
+  resolveQuotedName?: (uid: string | undefined) => string;
   /** Fired when the inline "重试" retry (below) itself fails -- e.g. still offline. Without this the
    *  failed-send icon just silently stays put with no feedback at all that the retry attempt was
    *  even made. */
@@ -95,6 +101,7 @@ export function MessageRow({
   highlighted,
   onToggleSelect,
   onContextMenu,
+  resolveQuotedName,
   onError,
 }: MessageRowProps) {
   if (isServerDeleted(msg)) {
@@ -121,6 +128,9 @@ export function MessageRow({
   const callResult = callResultDisplay(msg, mine);
   const contactCard = contactCardContentOf(msg);
   const mobileAttachment = mobileAttachmentContentOf(msg);
+  // Quoted-reply snapshot (x-im-reply). Not rendered for a recalled message -- its whole bubble
+  // collapses to the "消息已删除" placeholder, quote bar included.
+  const replyInfo = isRecalled(msg) ? null : parseReplyHead(msg.head);
 
   const retry = () => {
     if (typeof msg.seq !== 'number') return;
@@ -201,6 +211,9 @@ export function MessageRow({
                 mine ? 'rounded-[12px_4px_12px_12px] bg-bubble-mine' : 'rounded-[4px_12px_12px_12px] bg-white shadow-bubble'
               } ${isRecalled(msg) ? 'text-text-tertiary-4 italic' : ''} ${menuActive ? 'outline outline-2 outline-offset-2 outline-accent' : ''}`}
             >
+              {replyInfo ? (
+                <QuoteBar topicName={topic.name} reply={replyInfo} resolveName={resolveQuotedName ?? (() => '消息')} />
+              ) : null}
               {isRecalled(msg) ? (
                 '⚠ 消息已删除'
               ) : callResult ? (