* fix(orcad): stamp the build commit so orca skills install works on SSH and headless hosts
#27603 pins 'orca skills install|update' to the commit the CLI was built from,
read from the CLI's out/package.json. The desktop CLI build stamps it, but the
server bundle (the 'orca' in SSH-host and 'orca serve' terminals) wrote that file
without a commit, so the command always failed there with 'Could not read the
commit this Orca CLI was built from'. Stamp it the same way.
* test: verify built orcad CLI skill source in artifact preflight