feat: 数据处理向导新增模型配置步骤

StepId 新增 model 步骤，DataProcessCreateView 增加模型选择与生成参数编排，各选项面板与样式适配新步骤流程，回归脚本补充断言。

frontend/src/views/data-process/create/UnstructuredOptionsPanel.vue

@@ -1,6 +1,5 @@
 <script setup lang="ts">
 import { computed, ref, watch } from 'vue'
-import type { ModelItem } from '@/types'
 import type {
   ChunkMethod,
   GenerationControlOptions,
@@ -12,9 +11,8 @@ import GenerationOptionsPanel from './GenerationOptionsPanel.vue'
 
 const props = defineProps<{
   options: UnstructuredProcessOptions
-  generationModels: ModelItem[]
   validationAttempted: boolean
-  generationValidationMessage: string
+  qualityValidationMessage: string
   chunkValidationMessage: string
 }>()
 
@@ -269,9 +267,8 @@ defineExpose({ revealValidation })
     <div class="generation-option-list">
       <GenerationOptionsPanel
         :options="options"
-        :models="generationModels"
         section="quality"
-        :validation-message="validationAttempted ? generationValidationMessage : ''"
+        :validation-message="validationAttempted ? qualityValidationMessage : ''"
         @update:options="updateGenerationOptions"
       />
 
@@ -301,23 +298,6 @@ defineExpose({ revealValidation })
     </div>
   </div>
 
-  <div class="form-section model-options-section">
-    <div class="section-title-row">
-      <div>
-        <h3>大模型</h3>
-        <p>选择数据生成模型，并设置模型输出内容的要求</p>
-      </div>
-    </div>
-    <div class="generation-option-list">
-      <GenerationOptionsPanel
-        :options="options"
-        :models="generationModels"
-        section="model"
-        :validation-message="validationAttempted ? generationValidationMessage : ''"
-        @update:options="updateGenerationOptions"
-      />
-    </div>
-  </div>
 </template>
 
 <style scoped lang="scss">