feat: 小财管家意图规划与报销提交编排增强

- 完善管家意图识别、模型计划构建与规划器调度
- 重构差旅报销提交编排器与管家计划流程前端交互
- 优化报销消息项样式与文档中心视图
- 新增小财管家与附件上传风险前置复核设计文档
- 补充管家规划器与文档中心测试覆盖

web/src/services/steward.js

@@ -11,12 +11,28 @@ export function fetchStewardPlan(payload, options = {}) {
 export async function fetchStewardPlanStream(payload, handlers = {}, options = {}) {
   const {
     timeoutMs = 0,
+    idleTimeoutMs = 90000,
     timeoutMessage = '小财管家任务规划超时，请稍后重试。'
   } = options
   const controller = typeof AbortController !== 'undefined' ? new AbortController() : null
-  const timeoutId = controller && Number(timeoutMs) > 0
-    ? globalThis.setTimeout(() => controller.abort(), Number(timeoutMs))
-    : 0
+  let timeoutId = 0
+  const armAbortTimer = (delayMs) => {
+    if (!controller) return
+    if (timeoutId) {
+      globalThis.clearTimeout(timeoutId)
+      timeoutId = 0
+    }
+    if (Number(delayMs) > 0) {
+      timeoutId = globalThis.setTimeout(() => controller.abort(), Number(delayMs))
+    }
+  }
+  const clearAbortTimer = () => {
+    if (timeoutId) {
+      globalThis.clearTimeout(timeoutId)
+      timeoutId = 0
+    }
+  }
+  armAbortTimer(timeoutMs)
 
   let response
   try {
@@ -29,9 +45,7 @@ export async function fetchStewardPlanStream(payload, handlers = {}, options = {
       signal: controller?.signal
     })
   } catch (error) {
-    if (timeoutId) {
-      globalThis.clearTimeout(timeoutId)
-    }
+    clearAbortTimer()
     if (error?.name === 'AbortError') {
       throw new Error(timeoutMessage)
     }
@@ -39,17 +53,13 @@ export async function fetchStewardPlanStream(payload, handlers = {}, options = {
   }
 
   if (!response.ok) {
-    if (timeoutId) {
-      globalThis.clearTimeout(timeoutId)
-    }
+    clearAbortTimer()
     throw new Error(await resolveStreamError(response))
   }
 
   if (!response.body?.getReader) {
     const text = await response.text()
-    if (timeoutId) {
-      globalThis.clearTimeout(timeoutId)
-    }
+    clearAbortTimer()
     return consumeNdjsonText(text, handlers)
   }
 
@@ -59,11 +69,13 @@ export async function fetchStewardPlanStream(payload, handlers = {}, options = {
   let finalPlan = null
 
   try {
+    armAbortTimer(idleTimeoutMs)
     while (true) {
       const { value, done } = await reader.read()
       if (done) {
         break
       }
+      armAbortTimer(idleTimeoutMs)
       buffer += decoder.decode(value, { stream: true })
       const lines = buffer.split('\n')
       buffer = lines.pop() || ''
@@ -87,9 +99,7 @@ export async function fetchStewardPlanStream(payload, handlers = {}, options = {
     }
     throw error
   } finally {
-    if (timeoutId) {
-      globalThis.clearTimeout(timeoutId)
-    }
+    clearAbortTimer()
   }
 
   if (!finalPlan) {