also looking at this

fix(app): a fresh install now either works or says why

Merged glennmichael123 wants to merge fix/setup-blockers into main

16 files +512 -75

713b13c8cd fix(app): the downloaded app inherits launchd's bare PATH, so an installed claude is invisible glennmichael123 review this step
6b9fbdc803 feat(app): report a missing agent CLI as missing, not as a sign-in failure glennmichael123 review this step
82e296c158 fix(app): a reply can fail silently, because the Messages Automation grant is never checked glennmichael123 review this step
c0c1818994 fix: await control replies instead of returning them glennmichael123 review this step
a96a303b7b Merge main into fix/setup-blockers glennmichael123 review this step