fix(file-summary): 同步压缩包工作流状态与结果刷新

review_agent/file_summary/views.py

@@ -5,7 +5,7 @@ from pathlib import Path
 from django.http import FileResponse, Http404, JsonResponse
 from django.views.decorators.http import require_http_methods
 
-from review_agent.models import Conversation, ExportedSummaryFile, FileAttachment
+from review_agent.models import Conversation, ExportedSummaryFile, FileAttachment, Message
 from review_agent.models import FileSummaryBatch, WorkflowEvent
 from .events import serialize_event
 
@@ -90,6 +90,47 @@ def attachment_detail(request, conversation_id: int, attachment_id: int):
     return JsonResponse({"ok": True, "attachment": serialize_attachment(attachment)})
 
 
+def _serialize_message(message: Message) -> dict[str, object]:
+    return {
+        "id": message.pk,
+        "role": message.role,
+        "content": message.content,
+        "created_at": message.created_at.isoformat(),
+    }
+
+
+@require_http_methods(["GET"])
+@login_required
+def conversation_messages(request, conversation_id: int):
+    conversation = _conversation_for_user(request.user, conversation_id)
+    after = request.GET.get("after") or "0"
+    try:
+        after_id = int(after)
+    except ValueError:
+        after_id = 0
+
+    messages = list(conversation.messages.filter(pk__gt=after_id).order_by("id"))
+    latest_message_id = (
+        conversation.messages.order_by("-id").values_list("id", flat=True).first() or 0
+    )
+    logger.info(
+        "Conversation incremental messages requested",
+        extra={
+            "conversation_id": conversation.pk,
+            "after_id": after_id,
+            "message_count": len(messages),
+            "latest_message_id": latest_message_id,
+        },
+    )
+    return JsonResponse(
+        {
+            "conversation_id": conversation.pk,
+            "latest_message_id": latest_message_id,
+            "messages": [_serialize_message(message) for message in messages],
+        }
+    )
+
+
 @require_http_methods(["GET"])
 @login_required
 def batch_status(request, batch_id: int):
@@ -107,6 +148,7 @@ def batch_status(request, batch_id: int):
                 "success_files": batch.success_files,
                 "failed_files": batch.failed_files,
                 "total_pages": batch.total_pages,
+                "error_message": batch.error_message,
             },
             "nodes": [
                 {