On every push to swift/master: compile-checks against the simulator
(no signing required) then builds a development IPA and deploys it to
the shared OTA server at krishnas-mac-studio.tail37d544.ts.net:8443.
Modelled on 1ai's ci.yaml — runs on the local macos act runner so the
keychain is live and automatic signing works without any cert setup.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
