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.
* fix(degoog): restore bun symlinks after curl-impersonate update
The curl-impersonate CLEAN_INSTALL wipes /usr/local/bin, which removed the bun/bunx symlinks during update. Re-create them after the release deploy.
* clean install curl-impersonate
* sorting
