feat: 新增风险图谱算法与系统仪表盘及操作反馈体系

后端新增风险图谱算法模块、风险观察与反馈服务、规则 DSL
校验器和可解释性引擎，完善系统仪表盘和财务仪表盘统计，
优化 agent 运行和编排执行链路，清理旧开发文档，前端新增
系统趋势、负载热力图等多种仪表盘图表组件，完善操作反馈
对话框和工作台日期选择器，优化报销创建和审批详情交互，
补充单元测试覆盖。

web/src/composables/useChat.js

@@ -2,6 +2,7 @@ import { nextTick, ref } from 'vue'
 
 import { useSystemState } from './useSystemState.js'
 import { runOrchestrator } from '../services/orchestrator.js'
+import { filterVisibleMessageMeta } from '../utils/assistantMessageMeta.js'
 
 const initialMessages = [
   {
@@ -73,18 +74,6 @@ export function useChat(activeView) {
   function buildOrchestratorMeta(payload) {
     const items = []
 
-    if (payload?.selected_agent) {
-      items.push(`Agent: ${payload.selected_agent}`)
-    }
-
-    if (payload?.permission_level) {
-      items.push(`权限: ${payload.permission_level}`)
-    }
-
-    if (payload?.trace_summary?.tool_count) {
-      items.push(`工具: ${payload.trace_summary.tool_count}`)
-    }
-
     if (payload?.trace_summary?.degraded) {
       items.push('已降级')
     }
@@ -93,11 +82,7 @@ export function useChat(activeView) {
       items.push('待确认')
     }
 
-    if (payload?.run_id) {
-      items.push(`Run: ${payload.run_id}`)
-    }
-
-    return items
+    return filterVisibleMessageMeta(items)
   }
 
   function buildAssistantMessage(payload, fallbackText) {