perf: 优化异常处理和显示

astrbot/dashboard/routes/file.py

@@ -19,9 +19,6 @@ class FileRoute(Route):
         try:
             file_path = await file_token_service.handle_file(file_token)
             return await send_file(file_path)
-        except FileNotFoundError as e:
-            logger.warning(str(e))
-            return abort(404)
-        except KeyError as e:
+        except (FileNotFoundError, KeyError) as e:
             logger.warning(str(e))
             return abort(404)

astrbot/dashboard/routes/static_file.py

@@ -28,7 +28,7 @@ class StaticFileRoute(Route):
 
         @self.app.errorhandler(404)
         async def page_not_found(e):
-            return "404 Not found。如果你初次使用打开面板发现 404, 请参考文档: https://astrbot.app/faq.html。"
+            return "404 Not found。如果你初次使用打开面板发现 404, 请参考文档: https://astrbot.app/faq.html。如果你正在测试回调地址可达性，显示这段文字说明测试成功了。"
 
     async def index(self):
         return await self.app.send_static_file("index.html")