feat: improve async feedback and export workflow

ai_knowledge_base_v2/apps/backend/tests/test_admin_permissions.py

@@ -12,6 +12,7 @@ from app.services.admin_permission_service import ALL_PERMISSION_CODES, permissi
 def test_super_admin_has_all_permissions() -> None:
     admin = Admin(id=1, username="root", password="unused", name="root", status=1, is_super_admin=1)
     assert permissions_for(admin) == ALL_PERMISSION_CODES
+    assert {"feedback.view", "feedback.detail", "feedback.export", "feedback.delete"} <= ALL_PERMISSION_CODES
 
 
 def test_role_permissions_are_restricted_to_catalog() -> None:

ai_knowledge_base_v2/apps/backend/tests/test_message_feedback.py

@@ -1,10 +1,13 @@
 from __future__ import annotations
 
+from datetime import datetime
+from types import SimpleNamespace
+
 from sqlalchemy import create_engine
 from sqlalchemy.orm import Session
 from sqlalchemy.pool import StaticPool
 
-from app.api.feedback import FeedbackCreate, create_feedback, delete_feedback, feedback_detail, feedback_list
+from app.api.feedback import FeedbackCreate, _feedback_workbook, create_feedback, delete_feedback, feedback_detail, feedback_list
 from app.models import Base
 from app.models.admin import Admin
 from app.models.chat import ChatMessage, ChatSession
@@ -33,3 +36,20 @@ def test_feedback_binds_target_answer_and_exposes_context() -> None:
         assert detail["messages"][-1]["isTarget"] is True
         delete_feedback(created["id"], db=db, admin=admin)
         assert feedback_list(readStatus="all", page=1, pageSize=20, db=db, _admin=admin)["data"]["total"] == 0
+
+
+def test_feedback_export_workbook_is_formatted_and_formula_safe() -> None:
+    created_at = datetime(2026, 8, 11, 12, 30)
+    row = (
+        SimpleNamespace(is_read=0, content="=HYPERLINK(\"bad\")", created_at=created_at, read_at=None),
+        SimpleNamespace(name="测试用户", phone="13800000000"),
+        SimpleNamespace(id=9, content="AI 回答"),
+        SimpleNamespace(title="测试会话"),
+    )
+    workbook = _feedback_workbook([row])
+    sheet = workbook["反馈记录"]
+    assert sheet.freeze_panes == "A2"
+    assert sheet["E2"].data_type == "s"
+    assert sheet["E2"].value.startswith("'=")
+    assert sheet["I2"].value == created_at
+    assert sheet.tables["FeedbackRecords"].ref == "A1:J2"