Platformatic preset

[p-dubovitsky]

Platformatic already supports Nitro through @platformatic/nitro, using the regular Node server output. Would it make sense to add a preset that extends node-server?

The only extra behavior would be loading @platformatic/nitro/scheduler when scheduledTasks are configured, no custom runtime or output format is needed.

Later, @platformatic/nitro can set NITRO_PRESET=platformatic during Watt builds.