Size computation for allocation may overflow (#99)

* Size computation for allocation may overflow

Performing calculations involving the size of potentially large strings or slices can result in an overflow (for signed integer types) or a wraparound (for unsigned types). An overflow causes the result of the calculation to become negative, while a wraparound results in a small (positive) number.

vendor/github.com/redis/go-redis/v9/push/handler.go

@@ -0,0 +1,14 @@
+package push
+
+import (
+	"context"
+)
+
+// NotificationHandler defines the interface for push notification handlers.
+type NotificationHandler interface {
+	// HandlePushNotification processes a push notification with context information.
+	// The handlerCtx provides information about the client, connection pool, and connection
+	// on which the notification was received, allowing handlers to make informed decisions.
+	// Returns an error if the notification could not be handled.
+	HandlePushNotification(ctx context.Context, handlerCtx NotificationHandlerContext, notification []interface{}) error
+}