feat: 增强知识库索引与设置页面模块化拆分

扩展知识库索引任务和 RAG 检索支持增量入库和文档去重，优
化本体检测和规则匹配精度，前端设置页面拆分为 LLM、邮件
和 Hermes 员工同步子面板并重构样式，新增日志详情组件和
知识入库日志模型，补充单元测试覆盖。

web/src/views/scripts/useTravelReimbursementFlow.js

@@ -236,6 +236,7 @@ export function useTravelReimbursementFlow({
     const startedAt = Number.isFinite(explicitStartedAt) && explicitStartedAt > 0
       ? explicitStartedAt
       : Date.now()
+    flowFinishedAt.value = 0
     upsertFlowStep(key, {
       ...normalizedPatch,
       status: FLOW_STEP_STATUS_RUNNING,
@@ -446,7 +447,7 @@ export function useTravelReimbursementFlow({
         detail: '正在把已确认信息保存为草稿...'
       },
       link_to_existing_draft: {
-        key: 'expense-claim-draft',
+        key: 'attachment-association',
         title: '票据关联草稿',
         tool: 'database.expense_claims.save_or_submit',
         detail: '正在把本次票据关联到现有草稿...'
@@ -504,7 +505,7 @@ export function useTravelReimbursementFlow({
         return { key: 'pre-submit-review', title: 'AI预审与风险识别', tool: 'ExpenseClaimService.submit_claim' }
       }
       if (responseMessage.includes('关联')) {
-        return { key: 'expense-claim-draft', title: '票据关联草稿', tool: toolCall?.tool_name || 'ExpenseClaimService' }
+        return { key: 'attachment-association', title: '票据关联草稿', tool: toolCall?.tool_name || 'ExpenseClaimService' }
       }
       if (responseMessage.includes('新建')) {
         return { key: 'expense-claim-draft', title: '新建报销草稿', tool: toolCall?.tool_name || 'ExpenseClaimService' }