infra: add logging wrapping

Resolves issues with gcp cloud logging quirks such as field names

go/internal/handler/push_token.go

@@ -3,9 +3,10 @@ package handler
 import (
 	"encoding/json"
 	"errors"
-	"log/slog"
 	"net/http"
 
+	"github.com/flowy-live/llink/internal/utils/flog"
+
 	"github.com/flowy-live/llink/internal/human/pushnotify"
 	"github.com/flowy-live/llink/internal/middleware"
 )
@@ -45,7 +46,7 @@ func (h *Handler) RegisterPushToken(w http.ResponseWriter, r *http.Request) {
 			http.Error(w, err.Error(), http.StatusBadRequest)
 			return
 		}
-		slog.Error("failed to register push token", "error", err, "humanId", humanId)
+		flog.Error("failed to register push token", "error", err, "humanId", humanId)
 		http.Error(w, "internal server error", http.StatusInternalServerError)
 		return
 	}
@@ -74,7 +75,7 @@ func (h *Handler) UnregisterPushToken(w http.ResponseWriter, r *http.Request) {
 
 	err := h.pushTokenSvc.Unregister(r.Context(), humanId, req.Token)
 	if err != nil && !errors.Is(err, pushnotify.ErrNotFound) {
-		slog.Error("failed to unregister push token", "error", err, "humanId", humanId)
+		flog.Error("failed to unregister push token", "error", err, "humanId", humanId)
 		http.Error(w, "internal server error", http.StatusInternalServerError)
 		return
 	}