Split UI-free logic into a RunnerCore swift_library and cover it with a
swift_test suite using the Swift Testing library (import Testing / @Test /
#expect), matching Tests/m323Tests. Runs via `bazel test`.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add a SwiftTUI terminal app that lists race runners from the start list
and results files, with an interactive menu to sort, filter by age group,
toggle finishers vs. non-starters, and live-search by name. Parsing and
transforms are written as pure functions over the file contents.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
