Templating improvement

Create generic dev mode to enable dev only features

Make Endpoints/Route patterns be able to create relative and absolute links

Add datastar attributes and signals templating support

Basic client ops wrapping java client

Split into multiple modules

Race condition when interrupting `Queue#take` can cause items to disappear

ZStreams buffer(1) is buffering 2.

improved `Queue` shutdown functionality

ZScheduler parks+unparks workers too frequently