A match run is a different kind of run, and stops polluting the gore stats

The two modes share no currency: gore counts kills, multi-kills and weapons;
zombie tennis counts opponents felled and has exactly one kill per opponent,
always credited to 'bomb' (matchGameWon's explode). Every one of those was
landing in splatterRuns as a gore run, on the roster as THE CLUB PRO, and on
the KILLS world board — where a five-body match would post a row next to a
300-kill massacre and mean something else entirely by it.

One character on the record fixes all of it: `m`, absent meaning gore (which
is what every existing record is, so no migration). read() takes a mode and
so does endRun, which now compares you only against your own mode and refuses
a name prompt from a match.

The record's two headline slots carry each MODE's two headline numbers — gore
g=games s=sets, match g=felled s=games — so `g` stays the thing everything
ranks on and the match best is derived from the record instead of living in a
second key that drifts. That retires the matchBest key from the last commit.

Found on the way, pre-existing and visible: endRun returned `{...best, kills,
games}` and the later key won, so G.best.games was the run that had just died.
The gore death screen has been printing "BEST <this run> GAMES · <the record>
SETS". The return now carries the best and nothing else.

And stats.check() — the module's own fixture check — was exported and called
by nothing. Wired into the suite, with the mode split added to it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/main.js

@@ -317,7 +317,11 @@ addEventListener('keydown', e => {
 // one that actually fires on iOS, where beforeunload/unload do not. endRun is idempotent and
 // no-ops on an empty run, so closing the tab at the menu writes nothing.
 addEventListener('pagehide', () => {
-  if (G.mode === 'splatter') stats.endRun(G.runGames, G.sets[0], G.splatT, false);
+  if (G.mode !== 'splatter') return;
+  // ...tagged with the mode that was being played, and carrying THAT mode's two headline numbers —
+  // see the record-shape note in stats.endRun. A match abandoned mid-rally is a match run.
+  if (G.match) stats.endRun(G.match.opp - 1, score.games[0] + score.games[1], G.splatT, false, stats.MODE_MATCH);
+  else stats.endRun(G.runGames, G.sets[0], G.splatT, false);
 });
 
 // eaten: any tap or key returns to the title — but only once the death animation has played out, so