ios + ir cleanup
- ios: --target ios/ios-sim shorthands, iOS SDK auto-discovery,
#framework directive + BuildOptions.add_framework hook,
.app bundle + Info.plist + codesign (ad-hoc and real),
--codesign-identity/--provisioning-profile/--entitlements flags,
modules/std/{objc,uikit}.sx, dynamic class registration,
typed objc_msgSend cast pattern, UIApplicationMain handoff,
UIWindow scene attach. Runs on iPhone hardware.
- ir: silent .s64 defaults → loud diagnostics,
resolveReturnType infers from body, sub-byte int sizes match LLVM,
tuple type interning includes names, compile errors exit 1
- issue-NNNN convention: resolved bugs rename to focused features
- 50 regression tests passing
1c32d54e01