feat(kb): KnowledgePanel 接线 6 页 + /maps/canvas 错配消除

- /budget /kpis /deviations /predict /maps-review /alerts 六页按 related_page 挂载 KnowledgePanel
- /maps/canvas 页 prop 由 /maps 更正为 /maps/canvas（与表值一致，消除恒取空）
- 匹配口径走 backend/app/utils/route_key.py（origin/main 已有，KBFF-v11c 精确等值）
- 验证：本地产物 CDP 冒烟 18/18（六页 dom=api=1；/maps 命中 0 负对照）

frontend/src/views/AlertList.vue

@@ -360,6 +360,8 @@
         <el-button type="primary" @click="savePlan" :loading="savingPlan">保存</el-button>
       </template>
     </MyDialog>
+    <!-- KBFF-v1.1: 按 related_page 关联知识接线 · /alerts -->
+    <KnowledgePanel related-page="/alerts" />
   </div>
 </template>
 
@@ -372,6 +374,7 @@ import BotSourceTag from '../components/BotSourceTag.vue'
 import RiskCell from '../components/charts/RiskCell.vue'
 import { sessionEntityName } from '../utils/entity'
 import MyDialog from '../components/MyDialog.vue'
+import KnowledgePanel from '../components/KnowledgePanel.vue'
 
 const route = useRoute()
 const activeTab = ref((route.meta?.tab as string) || 'alerts')