refactor: refactor smart entry as standalone modal overlay

- Convert TravelReimbursementCreateView from page to modal overlay
- Simplify App.vue navigation flow with smartEntryOpen state
- Add create-request button in RequestsView

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/components/business/PersonalWorkbench.vue

@@ -20,12 +20,17 @@
         <p>自动识别报销类别、核对附件完整性，并生成可继续提交的报销草稿。</p>
 
         <div class="assistant-input">
-          <span>例如：我昨天请客户吃饭花了 860 元，还打车去了客户公司</span>
-          <button type="button" class="hero-action" @click="emit('openAssistant')">开始识别</button>
+          <textarea
+            v-model="assistantDraft"
+            rows="2"
+            placeholder="例如：我昨天请客户吃饭花了 860 元，还打车去了客户公司"
+            @keydown.ctrl.enter.prevent="openAssistantWithDraft"
+          />
+          <button type="button" class="hero-action" @click="openAssistantWithDraft">开始识别</button>
         </div>
 
         <div class="assistant-tools">
-          <button type="button" class="ghost-action" @click="emit('openAssistant')">
+          <button type="button" class="ghost-action" @click="emit('openAssistant', { prompt: '', source: 'upload' })">
             <i class="mdi mdi-upload-outline"></i>
             <span>上传票据</span>
           </button>
@@ -117,6 +122,7 @@
 </template>
 
 <script setup>
+import { ref } from 'vue'
 import PanelHead from '../shared/PanelHead.vue'
 import robotAssistant from '../../assets/robot-assistant.png'
 
@@ -125,6 +131,14 @@ defineProps({
 })
 
 const emit = defineEmits(['openAssistant'])
+const assistantDraft = ref('')
+
+function openAssistantWithDraft() {
+  emit('openAssistant', {
+    prompt: assistantDraft.value.trim(),
+    source: 'workbench'
+  })
+}
 
 const assistantSkills = ['识别报销类别', '检查缺少材料', '生成报销草稿']
 
@@ -350,22 +364,33 @@ const policyItems = [
   display: flex;
   align-items: center;
   gap: 14px;
-  min-height: 58px;
-  padding: 10px 10px 10px 18px;
+  min-height: 68px;
+  padding: 10px 10px 10px 14px;
   border: 1px solid rgba(148, 163, 184, 0.28);
   border-radius: 12px;
   background: rgba(255, 255, 255, 0.92);
   box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
 }
 
-.assistant-input span {
+.assistant-input textarea {
   min-width: 0;
   flex: 1;
-  color: #94a3b8;
+  min-height: 42px;
+  resize: none;
+  border: 0;
+  padding: 4px 0;
+  background: transparent;
+  color: #0f172a;
   font-size: 15px;
-  white-space: nowrap;
-  overflow: hidden;
-  text-overflow: ellipsis;
+  line-height: 1.55;
+}
+
+.assistant-input textarea::placeholder {
+  color: #94a3b8;
+}
+
+.assistant-input textarea:focus {
+  outline: none;
 }
 
 .hero-action,
@@ -719,8 +744,8 @@ const policyItems = [
     padding: 14px;
   }
 
-  .assistant-input span {
-    white-space: normal;
+  .assistant-input textarea {
+    min-height: 72px;
   }
 
   .hero-action,