feat(aihr): harden finance RAG retrieval and evidence gates

mobile-uni/src/pages/user/sop/index.vue

@@ -1326,7 +1326,13 @@ const citationDomainLabel = (snippet: KnowledgeSearchResponse['snippets'][number
   if (snippet.domain === 'PROJECT_SERVICE') return '项目记录';
   if (snippet.domain === 'PERSONAL') return '我的资料';
   if (snippet.sourceType === 'DATA_TOOL') return '数据工具';
-  return '企业 SOP';
+  return ({
+    FORMAL_POLICY: '正式制度',
+    OPERATING_MANUAL: '操作手册',
+    APPROVED_SOP: '已批准 SOP',
+    EXPERIENCE: '经验材料',
+    CASE: '案例'
+  }[snippet.sourceKind || ''] || '企业知识');
 };
 
 const serviceMemoryStatusLabel = (status?: string | null) => ({