feat: 数据处理向导默认数据类型改为结构化

创建页 processType 默认值与草稿恢复兜底由非结构化调整为结构化，更贴合主流使用场景。

frontend/src/components/AppSidebar.vue

@@ -45,8 +45,8 @@ const menuGroups = [
   {
     title: '数据治理',
     items: [
-      { key: 'data-process', label: '数据处理', icon: 'fa-filter', to: '/data-process' },
       { key: 'dataset', label: '数据集管理', icon: 'fa-file-text', to: '/dataset' },
+      { key: 'data-process', label: '数据处理', icon: 'fa-filter', to: '/data-process' },
     ],
   },
   {

frontend/src/views/data-process/DataProcessCreateView.vue

@@ -48,7 +48,7 @@ const WIZARD_STEPS = [
 const currentStep = ref(0)
 const currentStepId = computed<StepId>(() => WIZARD_STEPS[currentStep.value]?.id ?? 'create')
 const task = reactive({ name: '', description: '' })
-const processType = ref<ProcessType>('unstructured')
+const processType = ref<ProcessType>('structured')
 const structuredOptions = ref<StructuredProcessOptions>(createDefaultStructuredOptions())
 const unstructuredOptions = ref<UnstructuredProcessOptions>(createDefaultUnstructuredOptions())
 const uploadedFiles = ref<UploadedDataFile[]>([])

frontend/src/views/data-process/create/useDataProcessDraft.ts

@@ -94,9 +94,9 @@ export function useDataProcessDraft(bindings: DraftBindings) {
       bindings.goToStep('create')
       bindings.task.name = snapshot.task?.name || ''
       bindings.task.description = snapshot.task?.description || ''
-      bindings.processType.value = snapshot.processType === 'structured' || snapshot.processType === 'external'
+      bindings.processType.value = snapshot.processType === 'unstructured' || snapshot.processType === 'external'
         ? snapshot.processType
-        : 'unstructured'
+        : 'structured'
 
       if (snapshot.structuredOptions) {
         bindings.structuredOptions.value = {