fix: cannot regenerate with image(#15060) (#16611)

Co-authored-by: werido <359066432@qq.com>

api/fields/conversation_fields.py

     "size": fields.Integer,
     "transfer_method": fields.String,
     "belongs_to": fields.String(default="user"),
+    "upload_file_id": fields.String(default=None),
 }
 
 agent_thought_fields = {

api/models/model.py

             files.append(file)
 
         result = [
-            {"belongs_to": message_file.belongs_to, **file.to_dict()}
+            {"belongs_to": message_file.belongs_to, "upload_file_id": message_file.upload_file_id, **file.to_dict()}
             for (file, message_file) in zip(files, message_files)
         ]
 

web/app/components/base/chat/chat-with-history/hooks.tsx

       id: `question-${item.id}`,
       content: item.query,
       isAnswer: false,
-      message_files: getProcessedFilesFromResponse(questionFiles.map((item: any) => ({ ...item, related_id: item.id }))),
+      message_files: getProcessedFilesFromResponse(questionFiles.map((item: any) => ({ ...item, related_id: item.id, upload_file_id: item.upload_file_id }))),
       parentMessageId: item.parent_message_id || undefined,
     })
     const answerFiles = item.message_files?.filter((file: any) => file.belongs_to === 'assistant') || []
       feedback: item.feedback,
       isAnswer: true,
       citation: item.retriever_resources,
-      message_files: getProcessedFilesFromResponse(answerFiles.map((item: any) => ({ ...item, related_id: item.id }))),
+      message_files: getProcessedFilesFromResponse(answerFiles.map((item: any) => ({ ...item, related_id: item.id, upload_file_id: item.upload_file_id }))),
       parentMessageId: `question-${item.id}`,
     })
   })

web/app/components/base/file-uploader/utils.ts

       progress: 100,
       transferMethod: fileItem.transfer_method,
       supportFileType: fileItem.type,
-      uploadedId: fileItem.related_id,
+      uploadedId: fileItem.upload_file_id || fileItem.related_id,
       url: fileItem.url,
     }
   })

web/types/workflow.ts

   transfer_method: TransferMethod
   type: string
   url: string
+  upload_file_id: string
 }
 
 export type NodeFinishedResponse = {