Move the duplicated file-copy logic into update/copy.go so both
platform installers stay in sync during maintenance.
Signed-off-by: Bryan Frimin <bryan@probo.com>
Introduce the standalone device agent binary and shared library
for enrollment, posture checks, self-update, and OS service
integration. Include build targets, module deps, and release
workflow so the agent can ship independently of server changes.
Signed-off-by: Bryan Frimin <bryan@probo.com>
