Feat: Support uploading files when running agent #3221 (#8697)

### What problem does this PR solve?

Feat: Support uploading files when running agent #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/agent/utils/chat.ts

@@ -0,0 +1,21 @@
+import { MessageType } from '@/constants/chat';
+import { IReference } from '@/interfaces/database/chat';
+import { IMessage } from '@/pages/chat/interface';
+import { isEmpty } from 'lodash';
+
+export const buildAgentMessageItemReference = (
+  conversation: { message: IMessage[]; reference: IReference[] },
+  message: IMessage,
+) => {
+  const assistantMessages = conversation.message?.filter(
+    (x) => x.role === MessageType.Assistant,
+  );
+  const referenceIndex = assistantMessages.findIndex(
+    (x) => x.id === message.id,
+  );
+  const reference = !isEmpty(message?.reference)
+    ? message?.reference
+    : (conversation?.reference ?? [])[referenceIndex];
+
+  return reference ?? { doc_aggs: [], chunks: [], total: 0 };
+};