feat(imitation): add article imitation create flow

Introduce 仿写创作: new list and create views, backend imitation service
and prompt templates, worker task routing for imitation jobs, and one-click
rewrite triggers from question citation sources. Surface source article
URL/title on article list/detail, and restrict failed articles to delete-only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/admin-web/src/views/TrackingQuestionDetailView.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ArrowLeftOutlined } from "@ant-design/icons-vue";
+import { ArrowLeftOutlined, CopyOutlined } from "@ant-design/icons-vue";
 import { useQuery } from "@tanstack/vue-query";
 import dayjs from "dayjs";
 import type {
@@ -194,6 +194,29 @@ function goBack(): void {
   });
 }
 
+function openExternalURL(url: string | null | undefined): void {
+  const normalized = String(url ?? "").trim();
+  if (!normalized) {
+    return;
+  }
+  window.open(normalized, "_blank", "noopener,noreferrer");
+}
+
+function openImitationCreate(sourceURL: string | null | undefined, sourceTitle?: string | null): void {
+  const normalizedURL = String(sourceURL ?? "").trim();
+  if (!normalizedURL) {
+    return;
+  }
+
+  void router.push({
+    name: "article-imitation-create",
+    query: {
+      source_url: normalizedURL,
+      source_title: String(sourceTitle ?? "").trim() || undefined,
+    },
+  });
+}
+
 function formatPercent(value: number | null | undefined): string {
   if (value === null || value === undefined) {
     return "--";
@@ -1025,10 +1048,11 @@ const citationAnalysisColumns = computed(() => [
 ]);
 
 const contentCitationColumns = computed(() => [
-  { title: t("tracking.columns.contentName"), key: "contentName", dataIndex: "contentName", width: "40%" },
+  { title: t("tracking.columns.contentName"), key: "contentName", dataIndex: "contentName", width: "38%" },
   { title: t("tracking.columns.channelName"), key: "channelName", dataIndex: "channelName", width: "20%", align: "center" as const },
-  { title: t("tracking.columns.citations"), key: "citationCount", dataIndex: "citationCount", align: "center" as const, width: "20%" },
-  { title: t("tracking.columns.share"), key: "citationRate", dataIndex: "citationRate", align: "center" as const, width: "20%" },
+  { title: t("tracking.columns.citations"), key: "citationCount", dataIndex: "citationCount", align: "center" as const, width: "16%" },
+  { title: t("tracking.columns.share"), key: "citationRate", dataIndex: "citationRate", align: "center" as const, width: "16%" },
+  { title: t("common.actions"), key: "actions", align: "center" as const, width: "10%" },
 ]);
 </script>
 
@@ -1138,15 +1162,16 @@ const contentCitationColumns = computed(() => [
 
           <div ref="citationSourcesScrollRef" class="tracking-question-card__scroll-area custom-scrollbar">
             <div v-if="activePlatform?.citations?.length" class="tracking-question-source-list">
-              <a
+              <div
                 v-for="(citation, index) in activePlatform.citations"
                 :key="citation.cited_url"
-                :href="citation.cited_url"
-                target="_blank"
-                rel="noreferrer"
+                role="link"
+                tabindex="0"
                 class="tracking-question-source-card"
                 :class="{ 'is-linked': highlightedCitationIndex === index + 1 }"
                 :data-citation-index="index + 1"
+                @click="openExternalURL(citation.cited_url)"
+                @keydown.enter="openExternalURL(citation.cited_url)"
               >
                 <div class="tracking-question-source-card__headline">
                   <div class="tracking-question-source-card__indexes">
@@ -1168,6 +1193,15 @@ const contentCitationColumns = computed(() => [
                   <strong>{{ citation.site_name }}</strong>
                   <span class="tracking-question-source-card__divider" v-if="resolveCitationTitle(citation)">·</span>
                   <span class="tracking-question-source-card__title" :title="resolveCitationTitle(citation)">{{ resolveCitationTitle(citation) }}</span>
+                  <a-tooltip :title="t('tracking.imitationAction')">
+                    <button
+                      type="button"
+                      class="tracking-question-imitation-trigger tracking-question-imitation-trigger--source"
+                      @click.stop="openImitationCreate(citation.cited_url, resolveCitationTitle(citation))"
+                    >
+                      <CopyOutlined />
+                    </button>
+                  </a-tooltip>
                   <a-tag
                     v-if="citation.article_id && supportsContentCitationDisplay(activePlatform?.ai_platform_id)"
                     color="blue"
@@ -1179,7 +1213,7 @@ const contentCitationColumns = computed(() => [
                 <div class="tracking-question-source-card__link">
                   {{ citation.cited_url }}
                 </div>
-              </a>
+              </div>
             </div>
             <a-empty v-else :description="t('tracking.noCitations')" />
           </div>
@@ -1279,6 +1313,18 @@ const contentCitationColumns = computed(() => [
                 <template v-else-if="column.key === 'citationRate'">
                   <strong class="metric-highlight">{{ formatPercent(record.citationRate) }}</strong>
                 </template>
+                <template v-else-if="column.key === 'actions'">
+                  <a-tooltip v-if="record.citedURL" :title="t('tracking.imitationAction')">
+                    <button
+                      type="button"
+                      class="tracking-question-imitation-trigger tracking-question-imitation-trigger--table-action"
+                      @click.stop="openImitationCreate(record.citedURL, record.contentName)"
+                    >
+                      <CopyOutlined />
+                    </button>
+                  </a-tooltip>
+                  <span v-else class="tracking-question-table__empty-action">--</span>
+                </template>
               </template>
             </a-table>
           </div>
@@ -1546,6 +1592,7 @@ const contentCitationColumns = computed(() => [
 
 .tracking-question-source-card,
 .tracking-question-content-card {
+  position: relative;
   display: flex;
   flex-direction: column;
   gap: 6px;
@@ -1553,6 +1600,7 @@ const contentCitationColumns = computed(() => [
   border: 1px solid #edf2f7;
   border-radius: 10px;
   background: #f8fbff;
+  cursor: pointer;
   transition: all 0.2s ease;
   text-decoration: none;
 }
@@ -1563,6 +1611,10 @@ const contentCitationColumns = computed(() => [
   box-shadow: 0 4px 12px rgba(37, 99, 235, 0.05);
 }
 
+.tracking-question-source-card {
+  padding-right: 58px;
+}
+
 .tracking-question-source-card.is-linked {
   border-color: #93c5fd;
   background: #eef6ff;
@@ -1649,6 +1701,62 @@ const contentCitationColumns = computed(() => [
   white-space: nowrap;
 }
 
+.tracking-question-imitation-trigger {
+  display: inline-flex;
+  width: 28px;
+  height: 28px;
+  flex-shrink: 0;
+  align-items: center;
+  justify-content: center;
+  border: 1px solid #dbeafe;
+  border-radius: 8px;
+  background: #ffffff;
+  color: #2563eb;
+  cursor: pointer;
+  opacity: 0;
+  transform: translateY(1px);
+  transition:
+    opacity 0.18s ease,
+    transform 0.18s ease,
+    border-color 0.18s ease,
+    background-color 0.18s ease;
+}
+
+.tracking-question-imitation-trigger:hover {
+  border-color: #93c5fd;
+  background: #eff6ff;
+}
+
+.tracking-question-imitation-trigger--source {
+  position: absolute;
+  top: 50%;
+  right: 16px;
+  transform: translateY(calc(-50% + 1px));
+}
+
+.tracking-question-source-card:hover .tracking-question-imitation-trigger,
+.tracking-question-source-card:focus-within .tracking-question-imitation-trigger {
+  opacity: 1;
+  transform: translateY(0);
+}
+
+.tracking-question-source-card:hover .tracking-question-imitation-trigger--source,
+.tracking-question-source-card:focus-within .tracking-question-imitation-trigger--source {
+  opacity: 1;
+  transform: translateY(-50%);
+}
+
+.tracking-question-imitation-trigger--table-action {
+  margin: 0 auto;
+  opacity: 1;
+  transform: none;
+}
+
+.tracking-question-table__empty-action {
+  color: #cbd5e1;
+  font-size: 12px;
+}
+
 .tracking-question-source-card__link {
   color: #94a3b8;
   font-size: 12px;