feat: 新增预算助手报告组件并优化报销交互细节

新增预算助手报告视图模型和组件，优化报销洞察面板和消息项
样式细节，完善预算中心页面布局和文档中心视图，增强报销创
建会话管理和提交编排器，调整 Vite 构建配置，补充单元测试。

web/src/views/scripts/useTravelReimbursementFlow.js

@@ -86,6 +86,7 @@ export function useTravelReimbursementFlow({
   FLOW_STEP_STATUS_FAILED
 }) {
   const flowRunId = ref('')
+  const flowSessionType = ref('')
   const flowStartedAt = ref(0)
   const flowFinishedAt = ref(0)
   const flowSteps = ref([])
@@ -94,15 +95,23 @@ export function useTravelReimbursementFlow({
   let flowTickTimer = 0
   const flowSimulationTimers = []
 
+  const activeFlowSteps = computed(() => (
+    flowSessionType.value === resolveCurrentFlowSessionType()
+      ? flowSteps.value
+      : []
+  ))
   const completedFlowStepCount = computed(
-    () => flowSteps.value.filter((step) => step.status === FLOW_STEP_STATUS_COMPLETED).length
+    () => activeFlowSteps.value.filter((step) => step.status === FLOW_STEP_STATUS_COMPLETED).length
+  )
+  const rawRunningFlowStep = computed(
+    () => flowSteps.value.find((step) => step.status === FLOW_STEP_STATUS_RUNNING) || null
   )
   const runningFlowStep = computed(
-    () => flowSteps.value.find((step) => step.status === FLOW_STEP_STATUS_RUNNING) || null
+    () => activeFlowSteps.value.find((step) => step.status === FLOW_STEP_STATUS_RUNNING) || null
   )
   const visibleFlowSteps = computed(() => {
     const visibleSteps = []
-    for (const step of flowSteps.value) {
+    for (const step of activeFlowSteps.value) {
       visibleSteps.push(step)
       if (step.status !== FLOW_STEP_STATUS_COMPLETED) {
         break
@@ -111,19 +120,23 @@ export function useTravelReimbursementFlow({
     return visibleSteps
   })
   const flowOverallStatusTone = computed(() => {
-    if (flowSteps.value.some((step) => step.status === FLOW_STEP_STATUS_FAILED)) {
+    if (activeFlowSteps.value.some((step) => step.status === FLOW_STEP_STATUS_FAILED)) {
       return 'failed'
     }
     if (runningFlowStep.value) {
       return 'running'
     }
-    if (flowSteps.value.length && completedFlowStepCount.value === flowSteps.value.length && flowStartedAt.value) {
+    if (
+      activeFlowSteps.value.length
+        && completedFlowStepCount.value === activeFlowSteps.value.length
+        && flowStartedAt.value
+    ) {
       return 'completed'
     }
     return 'pending'
   })
   const flowOverallStatusText = computed(() => {
-    const total = flowSteps.value.length
+    const total = activeFlowSteps.value.length
     const completed = completedFlowStepCount.value
     if (flowOverallStatusTone.value === 'failed') {
       return `异常 ${completed}/${total}`
@@ -146,13 +159,17 @@ export function useTravelReimbursementFlow({
       return formatFlowDuration(finishedAt - flowStartedAt.value)
     }
 
-    const measuredDuration = flowSteps.value.reduce((total, step) => {
+    const measuredDuration = activeFlowSteps.value.reduce((total, step) => {
       const duration = Number(step.durationMs)
       return total + (Number.isFinite(duration) && duration > 0 ? duration : 0)
     }, 0)
     return measuredDuration ? formatFlowDuration(measuredDuration) : '--'
   })
 
+  function resolveCurrentFlowSessionType() {
+    return String(activeSessionType?.value || '').trim()
+  }
+
   function startFlowTick() {
     if (flowTickTimer) {
       return
@@ -183,6 +200,7 @@ export function useTravelReimbursementFlow({
     const shouldOpenDrawer = options.openDrawer !== false
     const startedAt = Number(options.startedAt)
     flowRunId.value = ''
+    flowSessionType.value = String(options.sessionType || resolveCurrentFlowSessionType()).trim()
     flowStartedAt.value = Number.isFinite(startedAt) && startedAt >= 0 ? startedAt : Date.now()
     flowFinishedAt.value = 0
     if (shouldOpenDrawer) {
@@ -242,6 +260,9 @@ export function useTravelReimbursementFlow({
   }
 
   function startFlowStep(key, patch = {}) {
+    if (!flowSessionType.value) {
+      flowSessionType.value = resolveCurrentFlowSessionType()
+    }
     const normalizedPatch = normalizeFlowStepPatch(key, patch)
     const explicitStartedAt = Number(normalizedPatch.startedAt)
     const startedAt = Number.isFinite(explicitStartedAt) && explicitStartedAt > 0
@@ -327,7 +348,7 @@ export function useTravelReimbursementFlow({
 
   function failCurrentFlowStep(error) {
     clearFlowSimulationTimers()
-    const currentStep = runningFlowStep.value || flowSteps.value.find((step) => step.status === FLOW_STEP_STATUS_PENDING)
+    const currentStep = rawRunningFlowStep.value || flowSteps.value.find((step) => step.status === FLOW_STEP_STATUS_PENDING)
     failFlowStep(
       currentStep?.key || 'orchestrator-error',
       error?.message || '智能体调用失败',
@@ -695,9 +716,11 @@ export function useTravelReimbursementFlow({
 
   return {
     flowRunId,
+    flowSessionType,
     flowStartedAt,
     flowFinishedAt,
     flowSteps,
+    activeFlowSteps,
     visibleFlowSteps,
     flowRefreshBusy,
     flowTick,