feat: add negative prompt handling in image generation

--bug=1058523 --user=刘瑞斌 【应用】图片生成节点的执行详情中没有显示负向提示词 https://www.tapd.cn/62980211/s/1729010

Author: liuruibin

apps/application/flow/step_node/image_generate_step_node/impl/base_image_generate_node.py

@@ -35,6 +35,7 @@ def execute(self, model_id, prompt, negative_prompt, dialogue_number, dialogue_t
         message_list = self.generate_message_list(question, history_message)
         self.context['message_list'] = message_list
         self.context['dialogue_type'] = dialogue_type
+        self.context['negative_prompt'] = negative_prompt
         image_urls = tti_model.generate_image(question, negative_prompt)
         # 保存图片
         file_urls = []
@@ -125,5 +126,6 @@ def get_details(self, index: int, **kwargs):
             'status': self.status,
             'err_message': self.err_message,
             'image_list': self.context.get('image_list'),
-            'dialogue_type': self.context.get('dialogue_type')
+            'dialogue_type': self.context.get('dialogue_type'),
+            'negative_prompt': self.context.get('negative_prompt'),
         }

ui/src/components/ai-chat/component/knowledge-source-component/ExecutionDetailContent.vue

@@ -598,6 +598,14 @@
                       {{ item.question || '-' }}
                     </div>
                   </div>
+                  <div class="card-never border-r-6 mt-8">
+                    <h5 class="p-8-12">
+                      {{ $t('views.applicationWorkflow.nodes.imageGenerateNode.negative_prompt.label') }}
+                    </h5>
+                    <div class="p-8-12 border-t-dashed lighter pre-wrap">
+                      {{ item.negative_prompt || '-' }}
+                    </div>
+                  </div>
                   <div class="card-never border-r-6 mt-8">
                     <h5 class="p-8-12">
                       {{