Switch the macOS bridge base dir to the Apple-standard per-user location
$HOME/Library/Application Support/cloud-neutral/xworkmate-bridge, while Linux
keeps /opt/cloud-neutral/xworkmate-bridge. Applied both as the Darwin -e
override in setup-ai-workspace-all-in-one.sh (the lever that reaches the
curl|bash path) and as an OS-conditional role default. Updates TC-MAC-012 and
the progress report with the not-pushed root cause of the 19:09 re-failure.
macOS deploys run with ansible_become=false, so the bridge role default
xworkmate_bridge_base_dir=/opt/cloud-neutral failed with EACCES creating
/opt/cloud-neutral. Inject a Darwin -e override pointing the base dir at
$HOME/.local/state/cloud-neutral/xworkmate-bridge, matching existing macOS
overrides for gateway_openclaw/agent_skills/xworkspace_console. Documents the
failure and fix as TC-MAC-012.
