feat: 完善差旅票据行程提取与费用明细回填逻辑

增强文档智能识别的票据场景关键词和字段提取能力，优化
会话关联草稿报销单的解析路径，修复费用明细合并和票据
去重边界问题，前端改进报销创建和审批详情交互，补充单
元测试覆盖。

web/src/views/TravelReimbursementCreateView.vue

@@ -328,14 +328,17 @@
                           </div>
                         </details>
 
-                        <div v-if="resolveReviewSubmitActions(message.reviewPayload).length || message.draftPayload?.claim_no" class="review-footer-actions">
+                        <div
+                          v-if="resolveReviewSubmitActions(message.reviewPayload).length || resolveReviewEditAction(message.reviewPayload) || message.draftPayload?.claim_no"
+                          class="review-footer-actions"
+                        >
                           <div class="review-footer-btn-row">
                             <button
                               v-for="action in resolveReviewSubmitActions(message.reviewPayload)"
                               :key="`${message.id}-${action.action_type}`"
                               type="button"
                               :class="['review-footer-btn', action.emphasis === 'primary' ? 'primary' : '']"
-                              :disabled="reviewActionBusy"
+                              :disabled="submitting || reviewActionBusy || sessionSwitchBusy"
                               @click="handleReviewAction(message, action)"
                             >
                               {{ action.label || buildReviewPrimaryButtonLabel(message.reviewPayload, message.draftPayload) }}
@@ -344,11 +347,11 @@
                             <button
                               v-if="resolveReviewEditAction(message.reviewPayload)"
                               type="button"
-                              class="review-footer-btn"
-                              :disabled="reviewActionBusy"
+                              :class="['review-footer-btn', resolveReviewEditAction(message.reviewPayload)?.emphasis === 'primary' ? 'primary' : '']"
+                              :disabled="submitting || reviewActionBusy || sessionSwitchBusy"
                               @click="handleReviewAction(message, resolveReviewEditAction(message.reviewPayload))"
                             >
-                              修改识别信息
+                              {{ resolveReviewEditAction(message.reviewPayload)?.label || '修改识别信息' }}
                             </button>
 
                             <button