* Update Java version from 17 to 25 in install script
* Set JAVA_VERSION before checking for gh release
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Co-authored-by: CanbiZ (MickLesk) <47820557+MickLesk@users.noreply.github.com>
Replaces the misc/build.func bootstrap with the two-root core loader.
No other change: the engine contract (var_*, update_script, start,
build_container, description) is identical on both engines.
versitygw.sh additionally gains a trailing newline; it lacked one.
With this batch every ct/ script is on the core engine.