feat: 增强风险规则生成引擎与预算中心页面

后端拆分风险规则生成为解释器、语义分析、本体对齐等子模块，
优化模板执行和流程图生成，完善员工种子数据和导入逻辑，增强
报销单权限策略和草稿持久化，前端新增预算中心视图和趋势图
组件，重构审计页面和风险规则测试对话框交互，完善文档中心
和报销创建页面细节，补充单元测试覆盖。

web/src/views/TravelReimbursementCreateView.vue

@@ -50,7 +50,7 @@
               class="assistant-layout"
               :class="{
                 'can-show-insight': hasInsightPanelContent,
-                'has-insight': showInsightPanel
+                'has-insight': hasInsightPanelContent && showInsightPanel
               }"
             >
               <section class="dialog-panel">
@@ -109,6 +109,88 @@
                       @click="handleAssistantMarkdownClick($event, message)"
                     ></div>
 
+                    <div
+                      v-if="message.role === 'assistant' && message.applicationPreview"
+                      class="application-preview-table"
+                      role="table"
+                      aria-label="申请信息核对表"
+                    >
+                      <div class="application-preview-row head" role="row">
+                        <span role="columnheader">字段</span>
+                        <span role="columnheader">内容</span>
+                      </div>
+                      <div
+                        v-for="row in resolveApplicationPreviewRows(message)"
+                        :key="`${message.id}-${row.key}`"
+                        class="application-preview-row"
+                        :class="{
+                          missing: row.missing,
+                          editable: row.editable && !submitting && !reviewActionBusy && !sessionSwitchBusy,
+                          highlight: row.highlight
+                        }"
+                        role="row"
+                        :tabindex="row.editable && !submitting && !reviewActionBusy && !sessionSwitchBusy ? 0 : -1"
+                        :aria-label="row.editable ? `编辑${row.label}` : row.label"
+                        @click="row.editable && !isApplicationPreviewEditing(message, row.key) && !submitting && !reviewActionBusy && !sessionSwitchBusy && openApplicationPreviewEditor(message, row.key, row.value)"
+                        @keydown.enter.prevent="row.editable && !isApplicationPreviewEditing(message, row.key) && !submitting && !reviewActionBusy && !sessionSwitchBusy && openApplicationPreviewEditor(message, row.key, row.value)"
+                        @keydown.space.prevent="row.editable && !isApplicationPreviewEditing(message, row.key) && !submitting && !reviewActionBusy && !sessionSwitchBusy && openApplicationPreviewEditor(message, row.key, row.value)"
+                      >
+                        <span class="application-preview-label" role="cell">{{ row.label }}</span>
+                        <span class="application-preview-value" role="cell">
+                          <input
+                            v-if="isApplicationPreviewEditing(message, row.key) && resolveApplicationPreviewEditorControl(row.key) !== 'select'"
+                            v-model="applicationPreviewEditor.draftValue"
+                            class="application-preview-input"
+                            type="text"
+                            autofocus
+                            @click.stop
+                            @keydown.stop="handleApplicationPreviewEditorKeydown($event, message)"
+                            @blur="commitApplicationPreviewEditor(message)"
+                          />
+                          <select
+                            v-else-if="isApplicationPreviewEditing(message, row.key)"
+                            v-model="applicationPreviewEditor.draftValue"
+                            class="application-preview-input application-preview-select"
+                            autofocus
+                            @click.stop
+                            @change="commitApplicationPreviewEditor(message)"
+                            @keydown.stop="handleApplicationPreviewEditorKeydown($event, message)"
+                            @blur="commitApplicationPreviewEditor(message)"
+                          >
+                            <option value="">请选择</option>
+                            <option
+                              v-for="option in resolveApplicationPreviewEditorOptions(row.key)"
+                              :key="option"
+                              :value="option"
+                            >
+                              {{ option }}
+                            </option>
+                          </select>
+                          <template v-else>
+                            <span class="application-preview-text">{{ row.value }}</span>
+                            <button
+                              v-if="row.editable"
+                              type="button"
+                              class="application-preview-edit-btn"
+                              title="修改内容"
+                              aria-label="修改内容"
+                              :disabled="submitting || reviewActionBusy || sessionSwitchBusy"
+                              @click.stop="openApplicationPreviewEditor(message, row.key, row.value)"
+                            >
+                              <i class="mdi mdi-pencil-outline"></i>
+                            </button>
+                          </template>
+                        </span>
+                      </div>
+                    </div>
+
+                    <div
+                      v-if="message.role === 'assistant' && message.applicationPreview && buildApplicationPreviewFooterText(message)"
+                      class="application-preview-footer message-answer-content message-answer-markdown"
+                      v-html="renderMarkdown(buildApplicationPreviewFooterText(message))"
+                      @click="handleAssistantMarkdownClick($event, message)"
+                    ></div>
+
                     <div
                       v-if="message.role === 'assistant' && message.welcomeQuickActions?.length"
                       class="welcome-quick-actions"
@@ -577,7 +659,7 @@
                           </div>
                         </div>
                       </div>
-                      <div class="travel-calculator-anchor">
+                      <div v-if="canShowTravelCalculator" class="travel-calculator-anchor">
                         <button
                           type="button"
                           class="tool-btn composer-side-btn travel-calculator-trigger"