feat: 报销预审会话状态管理与工作台交互增强

- 新增差旅报销会话状态管理与对话模型重构
- 增强风险观测服务与运行时聊天上下文作用域
- 优化工作台图标资源、助理意图识别与摘要工具
- 完善报销创建视图样式与差旅详情页标准调整交互
- 补充风险观测、运行时聊天与报销端点测试覆盖

web/src/views/TravelRequestDetailView.vue

@@ -184,6 +184,14 @@
                   <i class="mdi mdi-loading mdi-spin"></i>
                   <span>{{ smartEntryRecognitionText }}</span>
                 </div>
+                <div v-if="standardAdjustmentBusy" class="expense-recognition-banner standard-adjustment-banner">
+                  <i class="mdi mdi-loading mdi-spin"></i>
+                  <span>正在重新测算费用，请稍候。明细和合计会在后台完成后自动更新。</span>
+                </div>
+                <div v-if="submitBusy" class="expense-recognition-banner submit-progress-banner">
+                  <i class="mdi mdi-loading mdi-spin"></i>
+                  <span>正在提交审批，请稍候。系统正在完成自动检测、预算占用和审批流转。</span>
+                </div>
                 <table>
                   <thead>
                     <tr>
@@ -280,7 +288,10 @@
                           <template v-else>
                             <div v-if="item.hasStandardAdjustment" class="expense-adjusted-amount">
                               <span class="expense-original-amount">{{ item.originalAmountDisplay || item.amount }}</span>
-                              <strong class="expense-reimbursable-amount">{{ item.reimbursableAmountDisplay }}</strong>
+                              <strong class="expense-reimbursable-amount">
+                                <span class="expense-reimbursable-label">职级测算</span>
+                                {{ item.reimbursableAmountDisplay }}
+                              </strong>
                               <em v-if="item.employeeAbsorbedAmountDisplay">自担 {{ item.employeeAbsorbedAmountDisplay }}</em>
                             </div>
                             <strong v-else>{{ item.amount }}</strong>
@@ -754,6 +765,7 @@
       :open="submitConfirmDialogOpen"
       badge="提交确认"
       badge-tone="warning"
+      size="review"
       :title="`确认提交 ${request.id} 吗？`"
       :description="submitConfirmDescription"
       cancel-text="返回核对"
@@ -788,8 +800,9 @@
       :open="riskOverrideDialogOpen"
       badge="异常说明"
       badge-tone="danger"
+      size="review"
       :title="`当前存在 ${submitRiskWarnings.length} 条需说明的风险`"
-      description="请先补充异常说明后提交领导审批；也可以不填写说明，选择按职级最高可报销金额重新计算。"
+      description="请回到费用明细的异常说明列补充原因后再提交；如果不补充说明，可选择按职级最高可报销金额重新计算。"
       cancel-text="返回整改"
       confirm-text="按职级标准重算"
       busy-text="处理中..."
@@ -827,27 +840,10 @@
             <strong>{{ currentSubmitRiskWarning.title }}</strong>
           </div>
           <p>{{ currentSubmitRiskWarning.risk }}</p>
-          <textarea
-            v-model="riskOverrideReasons[currentSubmitRiskWarning.id]"
-            class="risk-note-editor-textarea"
-            rows="1"
-            maxlength="160"
-            placeholder="请说明原因，例如客户指定酒店、会议高峰、协议酒店满房等"
-            aria-label="异常说明"
-            @input="resizeExpenseNoteInput"
-            @keydown.enter="resizeExpenseNoteInput"
-          ></textarea>
         </article>
-        <div class="risk-override-submit-row">
-          <button
-            class="risk-override-save-btn"
-            type="button"
-            :disabled="riskOverrideBusy"
-            @click="confirmRiskOverrideReasons"
-          >
-            保存说明并继续提交
-          </button>
-          <span>不填写说明时，系统会按职级最高报销标准重算金额。</span>
+        <div class="risk-override-guidance">
+          <strong>请在费用明细的“异常说明”列补充原因后再提交。</strong>
+          <span>如果不补充说明，可直接选择按职级标准重算，超出标准的部分由员工自担。</span>
         </div>
       </div>
     </ConfirmDialog>