The MCP spec includes server-to-client notifications for things like list-changed events, progress, log messages, but I barely hear anyone talk about them, and I m not sure how much they re used.In theory, it would be nice to receive updates from MCP servers ( Your product has been shipped ) like we are already receiving from apps installed on the devices.I m wondering if this is a useful part of the protocol or just something that will mostly be ignored/deprecated.