feat(admin-web): preserve template wizard entry source and refresh AI banner

- Carry `from=workspace` query from the workbench into the wizard so cancel
  and post-generate redirects return to the workbench instead of always
  landing on /articles/templates.
- AppShell now resolves an effective navKey from `route.query.from`, so the
  sidebar highlight and breadcrumb track the entry source while inside the
  wizard.
- Redesign the brand-info AI analyze CTA into a standalone banner with
  template-aware copy (default / product_review / research_report) and add
  the matching i18n keys.
- Drop the unused 批量生成文章 button and its styling from the templates
  page.

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

apps/admin-web/src/i18n/messages/en-US.ts

@@ -897,22 +897,35 @@ const enUS = {
       },
       promptVisible: 'Prompt visible',
       promptSealed: 'Prompt sealed',
+      aiBanner: {
+        title: 'One-click AI analysis',
+        defaultDescription:
+          'AI will complete the brand summary, find core keywords, and extract competitor context.',
+        productReviewDescription:
+          'AI will organize the product context, extract review keywords, and suggest comparable alternatives.',
+        researchReportDescription:
+          'AI will organize the topic context, extract research keywords, and suggest reference targets.',
+      },
       assist: {
         analyzeTitle: 'AI is analyzing keywords and competitors. Please wait…',
+        analyzeTitleNoCompetitors: 'AI is analyzing keywords and context. Please wait…',
         titleTitle: 'AI is generating titles. Please wait…',
         outlineTitle: 'AI is generating the article outline. Please wait…',
         analyzeStages: {
           brand: 'Analyzing the brand context…',
           keywords: 'Extracting keyword opportunities…',
           competitors: 'Mapping competitors and websites…',
+          context: 'Organizing the content context…',
         },
         titleStages: {
           context: 'Preparing the current brief…',
           strategy: 'Generating title directions from keywords and competitors…',
+          strategyNoCompetitors: 'Generating title directions from the keywords and brief…',
           finalize: 'Returning 5 title options…',
         },
         outlineStages: {
           context: 'Preparing the title, keywords, and competitor context…',
+          contextNoCompetitors: 'Preparing the title, keywords, and content context…',
           structure: 'Generating the article outline from the selected structure…',
           finalize: 'Returning the editable outline result…',
         },