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/jobs/refundretry/job.go

@@ -51,7 +51,7 @@ func (j *Job) acquireLock(ctx context.Context) (func(), bool) {
 	}
 	ok, err := j.redis.SetNX(ctx, refundRetryLockKey, j.instanceID, j.lockTTL()).Result()
 	if err != nil {
-		j.logger.Warn("refund retry job acquire lock failed, run without lock", zap.Error(err))
+		j.logger.Warn("退款重试任务获取锁失败，将以单实例模式执行", zap.Error(err))
 		return func() {}, true
 	}
 	if !ok {
@@ -69,7 +69,7 @@ func (j *Job) releaseLock() {
 	defer cancel()
 	script := redis.NewScript(`if redis.call("get", KEYS[1]) == ARGV[1] then return redis.call("del", KEYS[1]) else return 0 end`)
 	if err := script.Run(relCtx, j.redis, []string{refundRetryLockKey}, j.instanceID).Err(); err != nil {
-		j.logger.Warn("refund retry job release lock failed", zap.Error(err))
+		j.logger.Warn("退款重试任务释放锁失败", zap.Error(err))
 	}
 }
 
@@ -99,7 +99,7 @@ func (j *Job) loop(ctx context.Context) {
 	for {
 		select {
 		case <-ctx.Done():
-			j.logger.Info("refund retry job stopped")
+			j.logger.Debug("退款重试任务已停止")
 			return
 		case <-ticker.C:
 			j.run(ctx)
@@ -117,14 +117,14 @@ func (j *Job) run(ctx context.Context) {
 	now := time.Now()
 	processed, err := j.syncRefundPayments(ctx, now)
 	if err != nil {
-		j.logger.Warn("refund retry job sync payments failed", zap.Error(err))
+		j.logger.Warn("退款重试任务同步失败", zap.Error(err))
 	}
 	missing, rebuilt, err := j.warnMissingRefundOrders(ctx, now)
 	if err != nil {
-		j.logger.Warn("refund retry job scan missing refund orders failed", zap.Error(err))
+		j.logger.Warn("退款重试任务扫描缺失退款单失败", zap.Error(err))
 	}
 	if processed > 0 || missing > 0 {
-		j.logger.Info("refund retry job finished",
+		j.logger.Info("退款重试任务处理完成",
 			zap.Int("processed", processed),
 			zap.Int("missing_refund_orders", missing),
 			zap.Int("rebuilt_arbitration_refunds", rebuilt),
@@ -147,13 +147,13 @@ func (j *Job) syncRefundPayments(ctx context.Context, now time.Time) (int, error
 	for _, row := range rows {
 		if _, err := j.payments.SyncRefundStatusByPaymentID(ctx, row.ID); err != nil {
 			if markErr := j.markRetryFailed(ctx, row, now); markErr != nil {
-				j.logger.Warn("refund retry mark failure failed",
+				j.logger.Warn("退款重试失败状态保存失败",
 					zap.Uint64("payment_id", row.ID),
 					zap.Uint64("order_id", row.OrderID),
 					zap.Error(markErr),
 				)
 			}
-			j.logger.Warn("refund retry sync failed",
+			j.logger.Warn("退款状态同步失败",
 				zap.Uint64("payment_id", row.ID),
 				zap.Uint64("order_id", row.OrderID),
 				zap.String("biz_type", row.BizType),
@@ -164,7 +164,7 @@ func (j *Job) syncRefundPayments(ctx context.Context, now time.Time) (int, error
 			continue
 		}
 		if err := j.resetRetry(ctx, row.ID); err != nil {
-			j.logger.Warn("refund retry reset counter failed",
+			j.logger.Warn("退款重试计数重置失败",
 				zap.Uint64("payment_id", row.ID),
 				zap.Uint64("order_id", row.OrderID),
 				zap.Error(err),
@@ -222,7 +222,7 @@ func (j *Job) warnMaxRetryRefunds(ctx context.Context, now time.Time) {
 		Limit(50).
 		Find(&rows).Error
 	if err != nil {
-		j.logger.Warn("refund retry max count scan failed", zap.Error(err))
+		j.logger.Warn("退款最大重试次数扫描失败", zap.Error(err))
 		return
 	}
 	if len(rows) == 0 {
@@ -235,7 +235,7 @@ func (j *Job) warnMaxRetryRefunds(ctx context.Context, now time.Time) {
 		ids = append(ids, row.ID)
 		orderIDs = append(orderIDs, row.OrderID)
 	}
-	j.logger.Warn("refund retry reached max count, need manual check",
+	j.logger.Warn("退款已达最大重试次数，需要人工处理",
 		zap.Int("count", len(rows)),
 		zap.Uint64s("payment_ids", ids),
 		zap.Uint64s("order_ids", orderIDs),
@@ -243,7 +243,7 @@ func (j *Job) warnMaxRetryRefunds(ctx context.Context, now time.Time) {
 	if err := j.db.WithContext(ctx).Model(&model.PaymentOrder{}).
 		Where("id IN ?", ids).
 		Update("last_retry_at", now).Error; err != nil {
-		j.logger.Warn("refund retry bump last_retry_at failed", zap.Error(err))
+		j.logger.Warn("退款重试时间更新失败", zap.Error(err))
 	}
 }
 
@@ -284,7 +284,7 @@ func (j *Job) warnMissingRefundOrders(ctx context.Context, now time.Time) (int,
 				rebuildFailOrderIDs = append(rebuildFailOrderIDs, row.ID)
 			} else {
 				rebuilt++
-				j.logger.Info("auto rebuild arbitration refund submitted",
+				j.logger.Info("仲裁退款单已自动补建",
 					zap.Uint64("order_id", row.ID),
 					zap.Int64("refund_amount_cent", row.RefundAmountCent),
 				)
@@ -295,13 +295,13 @@ func (j *Job) warnMissingRefundOrders(ctx context.Context, now time.Time) (int,
 	}
 	// 汇总告警 + Redis 24h 去重，避免每轮扫描刷屏
 	if len(missingOrderIDs) > 0 && j.shouldWarn(ctx, "missing_payment", 0) {
-		j.logger.Warn("refund order missing payment record, need manual check",
+		j.logger.Warn("退款订单缺少支付记录，需要人工处理",
 			zap.Int("count", len(missingOrderIDs)),
 			zap.Uint64s("order_ids", missingOrderIDs),
 		)
 	}
 	if len(rebuildFailOrderIDs) > 0 && j.shouldWarn(ctx, "rebuild_fail", 0) {
-		j.logger.Warn("auto rebuild arbitration refund failed, need manual check",
+		j.logger.Warn("仲裁退款单自动补建失败，需要人工处理",
 			zap.Int("count", len(rebuildFailOrderIDs)),
 			zap.Uint64s("order_ids", rebuildFailOrderIDs),
 		)