修复: gen_stream判重+重试分类+状态机最短路径+既有测试修复

src/views/TaskDetail.vue

@@ -144,6 +144,16 @@
           <div class="panel-header">
             <h2>{{ $t('taskDetail.childrenTitle') }}</h2>
             <span class="subtask-count">{{ $t('taskDetail.subtaskCount', { n: children.length }) }}</span>
+            <!-- 全选(勾选后触发底部批量操作栏) -->
+            <label v-if="children.length > 0" class="select-all" :title="$t('tasks.batch.selectHint')">
+              <input
+                type="checkbox"
+                :checked="selection.allSelected"
+                :indeterminate.prop="selection.someSelected"
+                @change="selection.toggleAll(($event.target as HTMLInputElement).checked)"
+              />
+              {{ $t('tasks.filter.all') }}
+            </label>
           </div>
           <!-- 顶部进度条 + 计数(done+cancelled / total) -->
           <div v-if="children.length > 0" class="subtask-progress">
@@ -159,6 +169,13 @@
               class="subtask-item"
               @click="router.push(`/tasks/${child.id}`)"
             >
+              <input
+                type="checkbox"
+                class="subtask-checkbox"
+                :checked="selection.isSelected(child.id)"
+                @click.stop
+                @change="selection.toggle(child.id, ($event.target as HTMLInputElement).checked)"
+              />
               <span class="subtask-title">{{ child.title }}</span>
               <span class="status-tag" :class="taskStatusClass(child.status)">{{ $t(taskStatusLabel(child.status)) }}</span>
               <span class="priority-badge" :class="priorityClass(child.priority)">{{ priorityLabel(child.priority) }}</span>
@@ -184,6 +201,27 @@
           <!-- 空态:父任务无子任务 -->
           <div v-else class="empty-hint subtask-empty">{{ $t('taskDetail.childEmpty') }}</div>
           <button class="btn btn-ghost btn-sm subtask-add" type="button" @click="openSubtaskModal">{{ $t('taskDetail.addSubtask') }}</button>
+          <!-- 批量操作栏(选中子任务后浮现) -->
+          <TaskBatchBar
+            v-if="selection.count > 0"
+            :count="selection.count"
+            :busy="batch.busy"
+            :advance-targets="batchAdvanceTargets"
+            :cancel-available="batchAvail.cancel"
+            :defer-available="batchAvail.defer"
+            :resume-available="batchAvail.resume"
+            :cascade-estimate="batchCascadeEstimate"
+            :toast="batch.toast"
+            :assignee-suggestions="assigneeSuggestions"
+            @advance="batch.advanceMany([...selection.selected], $event).then(afterBatch)"
+            @cancel="batch.cancelMany([...selection.selected]).then(afterBatch)"
+            @defer="batch.deferMany([...selection.selected]).then(afterBatch)"
+            @resume="batch.resumeMany([...selection.selected]).then(afterBatch)"
+            @priority="batch.updateMany([...selection.selected], 'priority', $event).then(afterBatch)"
+            @assignee="batch.updateMany([...selection.selected], 'assignee', $event).then(afterBatch)"
+            @delete="batch.deleteMany([...selection.selected]).then(afterBatch)"
+            @clear="selection.clear()"
+          />
         </section>
       </div>
 
@@ -245,7 +283,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, onMounted, onBeforeUnmount, watch, nextTick } from 'vue'
+import { ref, computed, reactive, onMounted, onBeforeUnmount, watch, nextTick } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useRoute, useRouter } from 'vue-router'
 import { listen } from '@tauri-apps/api/event'
@@ -259,10 +297,17 @@ import {
   taskStatusClass,
   priorityLabel,
   priorityClass,
+  TASK_STATUS_TRANSITIONS,
+  TASK_STATUS_ORDER,
+  ADVANCE_MAP,
 } from '../constants/project'
+import type { AdvanceAction } from '../constants/project'
 import type { TaskRecord, ProjectRecord, IdeaRecord, DfDataChangedPayload } from '@/api/types'
 import TaskOutputCard from '@/components/task/TaskOutputCard.vue'
+import TaskBatchBar from '@/components/task/TaskBatchBar.vue'
 import WorkflowDagDisplay from '@/components/workflow/WorkflowDagDisplay.vue'
+import { useTaskBatchSelection } from '@/composables/task/useTaskBatchSelection'
+import { useTaskBatchActions } from '@/composables/task/useTaskBatchActions'
 
 const { t } = useI18n()
 const route = useRoute()
@@ -293,15 +338,21 @@ function toggleChildMenu(id: string) {
 }
 function closeChildMenu() { childMenuId.value = null }
 
-// 复用列表页 quickStatuses/quickPriorities 模式(子任务行快捷推进)
-const quickStatuses = computed(() => [
-  { key: 'todo', icon: '📝', label: t('tasks.statusFilter.todo') },
-  { key: 'in_progress', icon: '🔨', label: t('tasks.statusFilter.in_progress') },
-  { key: 'in_review', icon: '👀', label: t('tasks.statusFilter.in_review') },
-  { key: 'testing', icon: '🧪', label: t('tasks.statusFilter.testing') },
-  { key: 'done', icon: '✅', label: t('tasks.statusFilter.done') },
-  { key: 'blocked', icon: '🚫', label: t('tasks.statusFilter.blocked') },
-])
+// 复用列表页 quickStatuses/quickPriorities 模式(子任务行快捷推进)。
+// 基础列表 = TASK_STATUS_ORDER 全 8 态(含 deferred/cancelled,快捷菜单经 ADVANCE_MAP 过滤后只显合法项)。
+const STATUS_FILTER_META: Record<string, { icon: string; labelKey: string }> = {
+  todo: { icon: '📝', labelKey: 'tasks.statusFilter.todo' },
+  in_progress: { icon: '🔨', labelKey: 'tasks.statusFilter.in_progress' },
+  in_review: { icon: '👀', labelKey: 'tasks.statusFilter.in_review' },
+  testing: { icon: '🧪', labelKey: 'tasks.statusFilter.testing' },
+  done: { icon: '✅', labelKey: 'tasks.statusFilter.done' },
+  blocked: { icon: '🚫', labelKey: 'tasks.statusFilter.blocked' },
+  deferred: { icon: '⏰', labelKey: 'tasks.statusFilter.deferred' },
+  cancelled: { icon: '🗑️', labelKey: 'tasks.statusFilter.cancelled' },
+}
+const quickStatuses = computed(() =>
+  TASK_STATUS_ORDER.map(key => ({ key, icon: STATUS_FILTER_META[key].icon, label: t(STATUS_FILTER_META[key].labelKey) })),
+)
 /** 子任务快捷推进目标 = 状态机合法下一态(ADVANCE_MAP 过滤,与顶部手动按钮同源) */
 function quickStatusesFor(child: TaskRecord) {
   const valid = new Set((ADVANCE_MAP[child.status] ?? []).map((a) => a.target))
@@ -333,6 +384,58 @@ async function loadChildren() {
   }
 }
 
+// ── 子任务批量操作;reactive 包装使模板属性自动解包 ──
+const selection = reactive(useTaskBatchSelection({
+  scopeIds: computed(() => children.value.map(c => c.id)),
+}))
+const batch = reactive(useTaskBatchActions({
+  getTask: id => children.value.find(c => c.id === id),
+  onRefresh: () => loadChildren(),
+}))
+async function afterBatch() {
+  selection.prune()
+}
+const batchAdvanceTargets = computed(() => {
+  const ids = [...selection.selected]
+  if (ids.length === 0) return []
+  let common: Set<string> | null = null
+  for (const id of ids) {
+    const task = children.value.find(c => c.id === id)
+    if (!task) continue
+    const legal = new Set(TASK_STATUS_TRANSITIONS[task.status] ?? [])
+    if (common === null) {
+      common = legal
+    } else {
+      const next = new Set<string>()
+      for (const s of common) if (legal.has(s)) next.add(s)
+      common = next
+    }
+    if (common.size === 0) return []
+  }
+  return quickStatuses.value.filter(s => common?.has(s.key))
+})
+const RESUME_STATES = new Set(['deferred', 'cancelled', 'blocked'])
+const batchAvail = computed(() => {
+  let cancel = false
+  let defer = false
+  let resume = false
+  for (const id of selection.selected) {
+    const task = children.value.find(c => c.id === id)
+    if (!task) continue
+    if (TASK_STATUS_TRANSITIONS[task.status]?.includes('cancelled')) cancel = true
+    if (TASK_STATUS_TRANSITIONS[task.status]?.includes('deferred')) defer = true
+    if (RESUME_STATES.has(task.status)) resume = true
+  }
+  return { cancel, defer, resume }
+})
+// 子任务均为叶子(无孙任务),级联删除数为 0
+const batchCascadeEstimate = computed(() => 0)
+const assigneeSuggestions = computed(() => {
+  const set = new Set<string>()
+  for (const c of children.value) if (c.assignee) set.add(c.assignee)
+  return [...set]
+})
+
 /** 取父任务标题(父面包屑用;取不到时回退显示父 id) */
 async function loadParentTitle() {
   const cur = task.value
@@ -555,41 +658,6 @@ const ideaTitle = computed(() => {
 //   testing     → done(完成), in_review(退回重审), blocked, cancelled
 //   blocked     → in_progress(恢复), cancelled
 //   done/cancelled → 终态,无按钮
-// variant: primary=前向推进主操作(每态至多一个),danger=取消,ghost=其余(阻塞/退回/恢复)
-interface AdvanceAction {
-  target: string
-  label: string   // i18n key(走 taskDetail.advance.*)
-  variant: string // btn-primary | btn-danger | btn-ghost
-}
-const ADVANCE_MAP: Record<string, AdvanceAction[]> = {
-  todo: [
-    { target: 'in_progress', label: 'taskDetail.advance.toInProgress', variant: 'btn-primary' },
-    { target: 'cancelled', label: 'taskDetail.advance.cancel', variant: 'btn-danger' },
-  ],
-  in_progress: [
-    { target: 'in_review', label: 'taskDetail.advance.toInReview', variant: 'btn-primary' },
-    { target: 'blocked', label: 'taskDetail.advance.block', variant: 'btn-ghost' },
-    { target: 'cancelled', label: 'taskDetail.advance.cancel', variant: 'btn-danger' },
-  ],
-  in_review: [
-    { target: 'testing', label: 'taskDetail.advance.toTesting', variant: 'btn-primary' },
-    { target: 'in_progress', label: 'taskDetail.advance.sendBack', variant: 'btn-ghost' },
-    { target: 'blocked', label: 'taskDetail.advance.block', variant: 'btn-ghost' },
-    { target: 'cancelled', label: 'taskDetail.advance.cancel', variant: 'btn-danger' },
-  ],
-  testing: [
-    { target: 'done', label: 'taskDetail.advance.toDone', variant: 'btn-primary' },
-    { target: 'in_review', label: 'taskDetail.advance.sendBackToReview', variant: 'btn-ghost' },
-    { target: 'blocked', label: 'taskDetail.advance.block', variant: 'btn-ghost' },
-    { target: 'cancelled', label: 'taskDetail.advance.cancel', variant: 'btn-danger' },
-  ],
-  blocked: [
-    { target: 'in_progress', label: 'taskDetail.advance.resume', variant: 'btn-primary' },
-    { target: 'cancelled', label: 'taskDetail.advance.cancel', variant: 'btn-danger' },
-  ],
-  // done / cancelled:终态,无推进按钮
-}
-
 const advanceActions = computed<AdvanceAction[]>(() => {
   const s = task.value?.status
   if (!s) return []
@@ -812,6 +880,7 @@ onBeforeUnmount(() => {
 /* D-260616-01:7 态新增 — testing(橙警告,近 review 区分)/blocked(红 danger,与 cancelled 区分用实心边框)。配色与 Tasks.vue 一致保持跨视图统一 */
 .status-testing { background: rgba(255,152,0,0.2); color: #ff9800; }
 .status-blocked { background: rgba(255,107,107,0.12); color: var(--df-danger); border: 0.5px solid var(--df-danger); }
+.status-deferred { background: rgba(255,193,7,0.15); color: #f0a030; }
 
 .priority-badge {
   font-size: 10px; font-weight: 500;
@@ -958,6 +1027,21 @@ onBeforeUnmount(() => {
   display: flex;
   flex-direction: column;
 }
+/* 子任务批量勾选 + 全选 */
+.subtask-checkbox { flex-shrink: 0; width: 14px; height: 14px; accent-color: var(--df-accent); cursor: pointer; margin: 0; }
+.select-all {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  margin-left: auto;
+  font-size: 12px;
+  color: var(--df-text-dim);
+  cursor: pointer;
+  user-select: none;
+  white-space: nowrap;
+}
+.select-all input { width: 14px; height: 14px; accent-color: var(--df-accent); cursor: pointer; }
+
 .subtask-item {
   display: flex;
   align-items: center;