infra: add logging wrapping

Resolves issues with gcp cloud logging quirks such as field names

go/internal/pusher/server.go

@@ -2,13 +2,14 @@ package pusher
 
 import (
 	"context"
-	"log/slog"
 	"net/http"
 
-	"github.com/flowy-live/llink/genproto/llink/pusher"
-	"github.com/flowy-live/llink/internal/auth"
 	"github.com/google/uuid"
 	"nhooyr.io/websocket"
+
+	pbpusher "github.com/flowy-live/llink/genproto/llink/pusher"
+	"github.com/flowy-live/llink/internal/auth"
+	"github.com/flowy-live/llink/internal/utils/flog"
 )
 
 // Server handles WebSocket upgrades and gRPC presence queries.
@@ -49,14 +50,14 @@ func (s *Server) HandleWebSocket(w http.ResponseWriter, r *http.Request) {
 		InsecureSkipVerify: true,
 	})
 	if err != nil {
-		slog.Error("websocket accept failed", "error", err)
+		flog.Error("websocket accept failed", "error", err)
 		return
 	}
 
 	connID := uuid.New().String()
 	conn := newConn(connID, session.HumanId, ws)
 
-	slog.Info("websocket connected", "connId", connID, "humanId", session.HumanId)
+	flog.Info("websocket connected", "connId", connID, "humanId", session.HumanId)
 
 	// Use the server context, not r.Context(): after upgrade the HTTP request
 	// context can be cancelled by load balancers and nhooyr/websocket would
@@ -70,7 +71,7 @@ func (s *Server) HandleWebSocket(w http.ResponseWriter, r *http.Request) {
 	go conn.WritePump(ctx)
 	conn.ReadPump(ctx, s.hub)
 
-	slog.Info("websocket disconnected", "connId", connID, "humanId", session.HumanId)
+	flog.Info("websocket disconnected", "connId", connID, "humanId", session.HumanId)
 }
 
 func (s *Server) GetOnlineHumanIds(ctx context.Context, _ *pbpusher.GetOnlineHumanIdsRequest) (*pbpusher.GetOnlineHumanIdsResponse, error) {