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/auth/service.go

@@ -11,6 +11,7 @@ import (
 
 	"hfb_sys/backend/internal/captcha"
 	smsprovider "hfb_sys/backend/internal/integrations/sms"
+	"hfb_sys/backend/internal/logging"
 	"hfb_sys/backend/internal/model"
 
 	"github.com/redis/go-redis/v9"
@@ -120,7 +121,15 @@ func (s *Service) SendSMSCode(ctx context.Context, phone string, captchaID strin
 	}
 	if err := s.sms.SendLoginCode(ctx, phone, code); err != nil {
 		if s.log != nil {
-			s.log.Warn("sms login code send failed", zap.String("phone", PublicPhone(phone)), zap.Error(err))
+			fields := []zap.Field{
+				zap.String("module", "auth"),
+				zap.String("phone", PublicPhone(phone)),
+				zap.Error(err),
+			}
+			if requestID := logging.RequestIDFromContext(ctx); requestID != "" {
+				fields = append(fields, zap.String("request_id", requestID))
+			}
+			s.log.Warn("短信验证码发送失败", fields...)
 		}
 		if smsprovider.IsProviderRateLimited(err) {
 			pipe := s.redis.TxPipeline()