A prior commit (6a7a7d8) accidentally captured only the _constants.py
half of an already-in-progress, uncommitted change removing
RUNNERUP_ACCEPTED_SPORTS -- leaving main broken (import error) since
_runnerup_verification.py and its 15 test files still referenced the
now-undefined constant. Committing the matching half: RunnerUp
entries are now judged purely by distance/duration, any sport
qualifies, matching how every other workout type is already treated.
Also: the new single-instance lock was not test-isolated, so every
ScreenLocker built across the suite contended for the same real
$XDG_RUNTIME_DIR/gatelock file -- only the first test won it, the
rest silently exited. Added to conftest.py's isolated-state table
(split into tests/_isolated_state.py to stay under the 250-line cap)
and added dedicated coverage for screen_locker/_instance.py.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018M5gKyYzxWG6QkCaj1wWfk
