重构日志与可观测性体系

新增单行文本编码器与结构化 GORM 日志，统一错误记录与请求日志策略，收紧日志文件权限并修复按天切分与压缩，支付回调参数脱敏，生产强制阿里云短信，RequestID 校验防注入，日志文案中文化。

backend/internal/modules/payment/handler.go

@@ -186,14 +186,13 @@ func (h *Handler) LeshuaNotify(c *gin.Context) {
 	}
 	rawPayload := string(body)
 	contentType := c.GetHeader("Content-Type")
-	h.log().Info("payment notify received", notifyLogFields(c.Request.Context(), "leshua", params, contentType, len(body))...)
 	result, err := h.service.HandleLeshuaNotify(c.Request.Context(), params, rawPayload, contentType)
 	if err != nil || result == nil || !result.OK {
-		h.log().Warn("payment notify failed", notifyLogFields(c.Request.Context(), "leshua", params, contentType, len(body), zap.Error(err))...)
+		h.log().Warn("支付回调处理失败", notifyLogFields(c.Request.Context(), "leshua", params, contentType, len(body), zap.Error(err))...)
 		c.String(http.StatusOK, "FAIL")
 		return
 	}
-	h.log().Info("payment notify processed", notifyLogFields(c.Request.Context(), "leshua", params, contentType, len(body))...)
+	h.log().Info("支付回调处理完成", notifyLogFields(c.Request.Context(), "leshua", params, contentType, len(body))...)
 	c.String(http.StatusOK, result.Message)
 }
 
@@ -211,14 +210,13 @@ func (h *Handler) LakalaNotify(c *gin.Context) {
 	rawPayload := string(body)
 	contentType := c.GetHeader("Content-Type")
 	authorization := c.GetHeader("Authorization")
-	h.log().Info("payment notify received", notifyLogFields(c.Request.Context(), "lakala", params, contentType, len(body))...)
 	result, err := h.service.HandleNotify(c.Request.Context(), "lakala", params, rawPayload, contentType, authorization)
 	if err != nil || result == nil || !result.OK {
-		h.log().Warn("payment notify failed", notifyLogFields(c.Request.Context(), "lakala", params, contentType, len(body), zap.Error(err))...)
+		h.log().Warn("支付回调处理失败", notifyLogFields(c.Request.Context(), "lakala", params, contentType, len(body), zap.Error(err))...)
 		c.JSON(http.StatusOK, gin.H{"code": "FAIL", "message": "失败"})
 		return
 	}
-	h.log().Info("payment notify processed", notifyLogFields(c.Request.Context(), "lakala", params, contentType, len(body))...)
+	h.log().Info("支付回调处理完成", notifyLogFields(c.Request.Context(), "lakala", params, contentType, len(body))...)
 	c.JSON(http.StatusOK, gin.H{"code": "SUCCESS", "message": "执行成功"})
 }
 
@@ -236,14 +234,13 @@ func (h *Handler) ShunchengNotify(c *gin.Context) {
 	rawPayload := string(body)
 	contentType := c.GetHeader("Content-Type")
 	authorization := c.GetHeader("Authorization")
-	h.log().Info("payment notify received", notifyLogFields(c.Request.Context(), "shuncheng", params, contentType, len(body))...)
 	result, err := h.service.HandleNotify(c.Request.Context(), "shuncheng", params, rawPayload, contentType, authorization)
 	if err != nil || result == nil || !result.OK {
-		h.log().Warn("payment notify failed", notifyLogFields(c.Request.Context(), "shuncheng", params, contentType, len(body), zap.Error(err))...)
+		h.log().Warn("支付回调处理失败", notifyLogFields(c.Request.Context(), "shuncheng", params, contentType, len(body), zap.Error(err))...)
 		c.String(http.StatusOK, "FAIL")
 		return
 	}
-	h.log().Info("payment notify processed", notifyLogFields(c.Request.Context(), "shuncheng", params, contentType, len(body))...)
+	h.log().Info("支付回调处理完成", notifyLogFields(c.Request.Context(), "shuncheng", params, contentType, len(body))...)
 	c.String(http.StatusOK, result.Message)
 }
 
@@ -295,6 +292,7 @@ func parseAdminPaymentQuery(c *gin.Context) (AdminPaymentQuery, bool) {
 }
 
 func writePaymentError(c *gin.Context, err error) {
+	response.RecordError(c, err)
 	switch {
 	case errors.Is(err, ErrDependencyUnavailable):
 		response.ServiceUnavailable(c, "数据库未连接")