优化结构

internal/server/middleware/access_log.go

@@ -40,10 +40,11 @@ func AccessLog(runtime *config.Store, logger *slog.Logger, version string) gin.H
 		}
 		bodyLimit := defaultRequestBodyLimit
 		if mediaUpload {
-			bodyLimit = system.DefaultMaxMediaFileSize + (1 << 20)
-			if admin != nil && admin.Media != nil && admin.Media.MaxFileSize > 0 {
-				bodyLimit = admin.Media.MaxFileSize + (1 << 20)
+			mediaSettings := system.MediaSettings{}
+			if admin != nil && admin.Media != nil {
+				mediaSettings.MaxFileSize = admin.Media.MaxFileSize
 			}
+			bodyLimit = mediaSettings.EffectiveMaxFileSize() + (1 << 20)
 		}
 		bytesIn := c.Request.ContentLength
 		logLimit := 1024
@@ -96,6 +97,7 @@ func AccessLog(runtime *config.Store, logger *slog.Logger, version string) gin.H
 			requestText = redactJSON(requestBody, c.GetHeader("Content-Type"), logLimit)
 		}
 		c.Set(ctxReqBodyKey, requestText)
+		c.Set(ctxRespTruncatedKey, writer.Truncated())
 		if paymentCallback {
 			// Callback acknowledgements and provider payloads must not flow into
 			// the generic response/error audit pipeline.
@@ -110,6 +112,9 @@ func AccessLog(runtime *config.Store, logger *slog.Logger, version string) gin.H
 			return
 		}
 		responseText := redactJSON(writer.body.Bytes(), c.Writer.Header().Get("Content-Type"), logLimit)
+		if writer.Truncated() {
+			responseText = "[超出记录长度]"
+		}
 		if paymentCallback {
 			responseText = "[支付回调响应已省略]"
 		}