cfgloader now searches only %ProgramData%\mototrbo on Windows since
the SCM working dir and LocalSystem profile are useless. mototrbod's
data_dir defaults to %ProgramData%\mototrbo\data on Windows.
Adds a WiX v4 MSI (installer/windows/mototrbod.wxs) that installs to
C:\Program Files\mototrbo, drops a default mototrbod.toml plus data
and logs dirs under C:\ProgramData\mototrbo, and registers mototrbod
as a LocalSystem auto-start service. The service install/uninstall
cobra subcommands are removed in favor of the MSI as the single
source of truth; start/stop/run remain.
Adds .github/workflows/release.yml to build the MSI on every v* tag
and publish it as a GitHub release asset.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>