新增: aichat前端体验四件与队列残留收口

- R4 代码块语言角标:MessageList decorateCodeHtml 捕获 language-xxx 输出 data-lang+CSS ::before 左上角标,hover 显,无语言裸块不渲染
- R6 工具结果路径可复制:ToolResultBody 五处 file-bar 的 path span→button(read_file/list_directory/search_files/grep/patch_file),点击复制完整路径+✓/✕ 1.2s 反馈+execCommand 降级链
- I6 重新生成 UI 入口:MessageItem user 气泡 hover 补重新生成按钮(canRegenerate=isLastUser&&非流式),复用 handleRetry→store.regenerate 链路
- V4 浮窗审批 High 风险二次确认:useToolApproval 导出 isHighRiskTool/highRiskConfirmText,ApprovalPopup.onApprove 前置 ConfirmDialog,数字键守卫不绕确认
- 9-28#5 两处全局清队列残留:useAiEvents/useAiLifecycleEvents 无 convId 的 AiError 分支改保留队列+console.warn(防误伤其他会话排队消息)
- i18n zh/en 补 clickToCopy 键;裸 @ 改 @ 转义(vue-i18n linked-message 前缀吞噬)

src/components/ToolResultBody.vue

@@ -6,7 +6,7 @@
   <div v-if="tc.name === 'read_file' && tc.result && tc.status === 'completed' && parsed" class="ai-tool-file-content">
     <div class="ai-tool-file-bar">
       <span class="ai-tool-file-icon" v-html="fileIcon"></span>
-      <span class="ai-tool-file-path" :title="parsed?.path">{{ shortPath(parsed?.path || '') }}</span>
+      <button type="button" class="ai-tool-file-path ai-tool-file-path--copy" :title="parsed?.path + ' — ' + $t('aiTool.clickToCopy')" @click.stop="copyResultPath($event, parsed?.path || '')">{{ shortPath(parsed?.path || '') }}</button>
       <!-- BUG-260625-02: search 模式返回 matches(命中行)非 content,
            旧模板取 lines/returned_lines 显「0 行」+ 空 content 区,用户误以为读取失败。
            search 模式显搜索词 + 命中数(复用 grepHitsN 文案);默认模式显行数/大小 + 展开。 -->
@@ -36,7 +36,7 @@
   <div v-else-if="tc.name === 'list_directory' && tc.result && tc.status === 'completed' && parsed" class="ai-tool-dir-list">
     <div class="ai-tool-file-bar">
       <span class="ai-tool-file-icon ai-tool-file-icon--dir" v-html="dirIcon"></span>
-      <span class="ai-tool-file-path" :title="parsed?.path">{{ shortPath(parsed?.path || '') }}</span>
+      <button type="button" class="ai-tool-file-path ai-tool-file-path--copy" :title="parsed?.path + ' — ' + $t('aiTool.clickToCopy')" @click.stop="copyResultPath($event, parsed?.path || '')">{{ shortPath(parsed?.path || '') }}</button>
       <span class="ai-tool-file-meta">{{ parsed?.entries?.length || 0 }} {{ $t('aiTool.items') }}</span>
       <span v-if="parsed?.truncated" class="ai-tool-file-meta ai-tool-file-meta--warn">{{ $t('aiTool.dirTruncated', { n: DIR_TRUNCATE_LIMIT }) }}</span>
     </div>
@@ -59,7 +59,7 @@
   <div v-else-if="tc.name === 'search_files' && tc.result && tc.status === 'completed' && parsed" class="ai-tool-dir-list">
     <div class="ai-tool-file-bar">
       <span class="ai-tool-file-icon ai-tool-file-icon--dir" v-html="dirIcon"></span>
-      <span class="ai-tool-file-path" :title="parsed?.path">{{ shortPath(parsed?.path || '') }}</span>
+      <button type="button" class="ai-tool-file-path ai-tool-file-path--copy" :title="parsed?.path + ' — ' + $t('aiTool.clickToCopy')" @click.stop="copyResultPath($event, parsed?.path || '')">{{ shortPath(parsed?.path || '') }}</button>
       <span v-if="parsed?.pattern" class="ai-tool-file-meta">「{{ parsed?.pattern }}」</span>
       <span class="ai-tool-file-meta">{{ $t('aiTool.foundN', { n: typeof parsed?.total === 'number' ? parsed.total : (parsed?.results?.length || 0) }) }}</span>
     </div>
@@ -77,7 +77,7 @@
   <div v-else-if="tc.name === 'grep' && tc.result && tc.status === 'completed' && parsed" class="ai-tool-grep-result">
     <div class="ai-tool-file-bar">
       <span class="ai-tool-file-icon" v-html="searchIcon"></span>
-      <span class="ai-tool-file-path" :title="parsed?.path">{{ shortPath(parsed?.path || '') }}</span>
+      <button type="button" class="ai-tool-file-path ai-tool-file-path--copy" :title="parsed?.path + ' — ' + $t('aiTool.clickToCopy')" @click.stop="copyResultPath($event, parsed?.path || '')">{{ shortPath(parsed?.path || '') }}</button>
       <span v-if="parsed?.pattern" class="ai-tool-file-meta">「{{ parsed?.pattern }}」</span>
       <span class="ai-tool-file-meta">{{ grepHitLabel }}</span>
       <span v-if="parsed?.truncated" class="ai-tool-file-meta ai-tool-file-meta--warn">{{ $t('aiTool.grepTruncated') }}</span>
@@ -125,7 +125,7 @@
   <div v-else-if="tc.name === 'patch_file' && tc.result && tc.status === 'completed' && parsed" class="ai-tool-patch-result">
     <div class="ai-tool-file-bar">
       <span class="ai-tool-file-icon" v-html="fileIcon"></span>
-      <span class="ai-tool-file-path" :title="parsed?.path">{{ shortPath(parsed?.path || '') }}</span>
+      <button type="button" class="ai-tool-file-path ai-tool-file-path--copy" :title="parsed?.path + ' — ' + $t('aiTool.clickToCopy')" @click.stop="copyResultPath($event, parsed?.path || '')">{{ shortPath(parsed?.path || '') }}</button>
       <span class="ai-tool-file-meta">{{ formatSizeDiff(parsed?.size_diff) }} {{ $t('aiTool.bytesUnit') }}</span>
       <span v-if="parsed?.matches_found && parsed.matches_found > 1" class="ai-tool-file-meta">{{ $t('aiTool.patchedMatches', { n: parsed.matches_found }) }}</span>
     </div>
@@ -257,6 +257,39 @@ const emit = defineEmits<{
   'install-obscura': []
 }>()
 
+// ── R6 结果路径可复制 ──
+// AI 读过/写过的文件,用户想拿去本地操作(编辑器打开/再 grep)只能手动重敲路径。
+// file-bar 的 path 改为可点击:复制完整路径(parsed.path 原文,非 shortPath 截断展示),
+// 按钮文字短暂变「✓」作反馈(1.2s 还原,同 R4 代码块复制反馈节奏)。
+let _pathCopiedTimer: ReturnType<typeof setTimeout> | null = null
+async function copyResultPath(e: MouseEvent, path: string): Promise<void> {
+  if (!path) return
+  const btn = e.currentTarget as HTMLButtonElement | null
+  let ok = false
+  try {
+    if (navigator.clipboard?.writeText) {
+      await navigator.clipboard.writeText(path)
+      ok = true
+    }
+  } catch { /* 落 execCommand 兜底 */ }
+  if (!ok) {
+    const ta = document.createElement('textarea')
+    ta.value = path
+    ta.style.position = 'fixed'
+    ta.style.opacity = '0'
+    document.body.appendChild(ta)
+    ta.select()
+    try { ok = document.execCommand('copy') } catch { ok = false }
+    document.body.removeChild(ta)
+  }
+  if (btn) {
+    const prev = btn.textContent
+    btn.textContent = ok ? '✓' : '✕'
+    if (_pathCopiedTimer) clearTimeout(_pathCopiedTimer)
+    _pathCopiedTimer = setTimeout(() => { btn.textContent = prev }, 1200)
+  }
+}
+
 // run_command 输出折叠态:失败命令默认展开(便于看 stderr),成功默认折叠
 const cmdOutputExpanded = ref(false)
 // http_request 响应 body 折叠态:失败(非 2xx)默认展开便于看错误,成功默认折叠
@@ -403,6 +436,14 @@ watch(() => props.tc.status, (s) => {
 .ai-tool-file-meta--warn {
   color: var(--df-warning);
 }
+/* R6:路径可点击复制(按钮语义,视觉保持原 span 形态;hover 变 accent 提示可点) */
+.ai-tool-file-path--copy {
+  cursor: pointer;
+  transition: color 0.15s var(--df-ease);
+}
+.ai-tool-file-path--copy:hover {
+  color: var(--df-accent);
+}
 
 /* grep 结果文件栏复用 ai-tool-file-bar,命中行用等宽渲染 */
 .ai-tool-grep-result {

src/components/ai/MessageItem.vue

@@ -34,11 +34,14 @@ defineProps<{
   msg: AiMessage
   /** 是否显示编辑按钮(父合成:末条 user + 非生成中 + 非编辑中) */
   canEdit?: boolean
+  /** I6:是否显示重新生成按钮(父合成同 canEdit 时机;作用于末条 user 触发的回复) */
+  canRegenerate?: boolean
 }>()
 
 const emit = defineEmits<{
   (e: 'copy', msg: AiMessage): void
   (e: 'start-edit', msg: AiMessage): void
+  (e: 'regenerate', msg: AiMessage): void
 }>()
 
 // ── Input Augmentation: 按 mention 区间切段 ──
@@ -122,6 +125,10 @@ function imgAlt(img: ImageContentPart): string {
             <img v-for="(img, idx) in msgImageParts(msg)" :key="msg.id + '-img-' + idx" :src="imageSrc(img)" :alt="imgAlt(img)" class="ai-msg-image" loading="lazy" />
           </div>
         </template>
+        <!-- I6:重新生成按钮(hover,编辑按钮左侧);复用后端 regenerate 链路(弹末尾 AI 回复取触发 user 消息重跑) -->
+        <button v-if="canRegenerate" class="ai-msg-regen-btn" :title="t('aiChat.regenerate')" @click.stop="emit('regenerate', msg)">
+          <svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="23 4 23 10 17 10"/><path d="M20.49 15a9 9 0 11-2.12-9.36L23 10"/></svg>
+        </button>
         <!-- UX-09:末条 user 消息编辑按钮(hover 显示),点击经 start-edit 链回填输入框编辑重发 -->
         <button v-if="canEdit" class="ai-msg-edit-btn" :title="t('aiChat.editMessage')" @click.stop="emit('start-edit', msg)">
           <svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M11 4H4a2 2 0 00-2 2v14a2 2 0 002 2h14a2 2 0 002-2v-7"/><path d="M18.5 2.5a2.121 2.121 0 013 3L12 15l-4 1 1-4 9.5-9.5z"/></svg>
@@ -195,8 +202,9 @@ function imgAlt(img: ImageContentPart): string {
   max-height: 200px;
   border-radius: 6px;
 }
-/* 复制/编辑按钮(hover 显示,同栏同视觉;编辑按钮仅 canEdit 时渲染) */
+/* 复制/编辑/重新生成按钮(hover 显示,同栏同视觉;编辑/重新生成仅各自 can* 时渲染) */
 .ai-copy-btn,
+.ai-msg-regen-btn,
 .ai-msg-edit-btn {
   opacity: 0;
   transition: opacity 0.15s;
@@ -207,7 +215,11 @@ function imgAlt(img: ImageContentPart): string {
   color: var(--df-text-dim);
 }
 .ai-msg-user:hover .ai-copy-btn,
+.ai-msg-user:hover .ai-msg-regen-btn,
 .ai-msg-user:hover .ai-msg-edit-btn {
   opacity: 1;
 }
+.ai-msg-regen-btn:hover {
+  color: var(--df-accent);
+}
 </style>

src/components/ai/MessageList.vue

@@ -620,10 +620,16 @@ function decorateCodeHtml(raw: string): string {
   const hit = _decoCache.get(raw)
   if (hit !== undefined) return hit
   // marked 的 code renderer 统一输出 <pre><code class="hljs ...">…</code></pre>
-  //(含缩进码块),代码内容已 HTML 转义,正则非贪婪到首个闭合标签不会越界
+  //(含缩进码块),代码内容已 HTML 转义,正则非贪婪到首个闭合标签不会越界。
+  // R4 语言角标:code class 形如 hljs language-ts,捕获 language-xxx 输出到 .md-code-block
+  // 的 data-lang,CSS ::after 显示;无语言(裸块/auto 猜测无 language- 类)不显角标。
   const out = raw.replace(
     /<pre><code([^>]*)>([\s\S]*?)<\/code><\/pre>/g,
-    '<div class="md-code-block"><button type="button" class="md-code-copy">复制</button><pre><code$1>$2</code></pre></div>',
+    (_m: string, attrs: string, body: string) => {
+      const lang = /language-([a-z0-9+#.-]+)/i.exec(attrs)?.[1] ?? ''
+      const langAttr = lang ? ` data-lang="${lang}"` : ''
+      return `<div class="md-code-block"${langAttr}><button type="button" class="md-code-copy">复制</button><pre><code${attrs}>${body}</code></pre></div>`
+    },
   )
   if (_decoCache.size > DECO_CACHE_LIMIT) _decoCache.clear()
   _decoCache.set(raw, out)
@@ -718,6 +724,15 @@ async function handleRetry(): Promise<void> {
   }
 }
 
+/**
+ * I6 重新生成按钮:与错误气泡「重试」同链路(store.regenerate,后端弹末尾 AI 回复取触发
+ * user 消息重跑),入口场景不同——用户对已有回复不满意主动重问,挂在末条 user 气泡 hover。
+ * 与隐藏快捷键 Ctrl+R(AiChat.vue)等价,补齐 UI 入口(i18n aiChat.regenerate 文案已备)。
+ */
+async function handleRegenerate(): Promise<void> {
+  await handleRetry()
+}
+
 /**
  * fetch_url obscura 未装时"AI 帮装"按钮:自动触发 AI 对话让 AI run_command 装流式。
  * 提示语足够具体(给出 cargo install + GitHub releases 两种装法 + 装完告知用户重试),
@@ -1530,8 +1545,10 @@ defineExpose({
         v-else-if="item.msg.role === 'user'"
         :msg="item.msg"
         :can-edit="isLastUser(item.msg) && !store.state.streaming && item.msg.id !== editingMsgId"
+        :can-regenerate="isLastUser(item.msg) && !store.state.streaming"
         @copy="copyMsgContent"
         @start-edit="(m) => emit('start-edit', m)"
+        @regenerate="handleRegenerate"
       />
 
       <!-- AI 消息 -->
@@ -2100,6 +2117,31 @@ defineExpose({
   color: var(--df-danger);
   border-color: var(--df-danger);
 }
+/* R4 语言角标:左上角,hover 随复制按钮一起显现(hover pre 块时) */
+.ai-md :deep(.md-code-block)::before {
+  content: attr(data-lang);
+  position: absolute;
+  top: 6px;
+  left: 8px;
+  z-index: 1;
+  font-size: 9px;
+  line-height: 1.4;
+  letter-spacing: 0.03em;
+  color: var(--df-text-dim);
+  background: color-mix(in srgb, var(--df-bg) 82%, transparent);
+  padding: 1px 6px;
+  border-radius: var(--df-radius-sm);
+  opacity: 0;
+  transition: opacity 0.15s var(--df-ease);
+  pointer-events: none;
+}
+.ai-md :deep(.md-code-block:hover)::before {
+  opacity: 1;
+}
+/* 无 data-lang 的裸块不渲染空角标 */
+.ai-md :deep(.md-code-block:not([data-lang]))::before {
+  content: none;
+}
 
 /* ── UX-02/消息操作栏(hover 显示 / 错误气泡常显) ── */
 .ai-msg-actions {