完善日志和审计链路

backend/internal/middleware/request_logger.go

@@ -1,6 +1,7 @@
 package middleware
 
 import (
+	"strings"
 	"time"
 
 	"github.com/gin-gonic/gin"
@@ -12,12 +13,36 @@ func RequestLogger(logger *zap.Logger) gin.HandlerFunc {
 		start := time.Now()
 		c.Next()
 
-		logger.Info("http request",
+		latency := time.Since(start)
+		fields := []zap.Field{
+			zap.String("request_id", GetRequestID(c)),
 			zap.String("method", c.Request.Method),
 			zap.String("path", c.Request.URL.Path),
+			zap.String("route", c.FullPath()),
 			zap.Int("status", c.Writer.Status()),
-			zap.Duration("latency", time.Since(start)),
+			zap.Float64("latency_ms", float64(latency.Microseconds())/1000),
 			zap.String("client_ip", c.ClientIP()),
-		)
+			zap.String("user_agent", c.GetHeader("User-Agent")),
+			zap.String("referer", c.GetHeader("Referer")),
+			zap.Int("response_size", c.Writer.Size()),
+		}
+		if userID, ok := c.Get(ContextUserID); ok {
+			fields = append(fields, zap.Any("user_id", userID))
+		}
+		if adminID, ok := c.Get(ContextAdminID); ok {
+			fields = append(fields, zap.Any("admin_id", adminID))
+		}
+		if len(c.Errors) > 0 {
+			fields = append(fields, zap.String("errors", strings.TrimSpace(c.Errors.String())))
+		}
+
+		switch {
+		case c.Writer.Status() >= 500:
+			logger.Error("http request", fields...)
+		case c.Writer.Status() >= 400:
+			logger.Warn("http request", fields...)
+		default:
+			logger.Info("http request", fields...)
+		}
 	}
 }