nightly

What's Changed

• fix(services): keep OpenRouter aggregate error until every key heals by @VincentShipsIt in #494
• refactor(services): consolidate off-main transport into ServiceSupport helpers by @VincentShipsIt in #495
• ci: single-source the Xcode pin in a composite action by @VincentShipsIt in #496

Full Changelog: v1.8.42...nightly