infra: add logging wrapping

Resolves issues with gcp cloud logging quirks such as field names

go/internal/waitlist/service.go

@@ -4,12 +4,14 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"log/slog"
 	"time"
 
+	"github.com/flowy-live/llink/internal/utils/flog"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+
 	pbaero "github.com/flowy-live/llink/genproto/aero"
 	"github.com/flowy-live/llink/internal/utils"
-	"github.com/jackc/pgx/v5/pgxpool"
 )
 
 type WaitlistEntry struct {
@@ -83,7 +85,7 @@ func (s *serviceImpl) AddToWaitlist(ctx context.Context, email string, metadata
 		},
 	})
 	if err != nil {
-		slog.Error("failed to add to waitlist", "error", err, "email", email)
+		flog.Error("failed to add to waitlist", "error", err, "email", email)
 	}
 
 	return nil