Phase 7: the scoreboard is the progression — spawn director, changeovers, sets, permadeath

- Spawn director: gap and court cap scale with games finished (runGames);
  game 1 is three lonely shamblers, late runs approach zSpawnMin/zMaxCap
- Changeover after odd games: 4.5s forced breather, no spawns, no serving
  (melee still works), boys mop, umpire calls 'Time.' (new time.m4a)
- 6 games = a set; set end launches the horde (replaces the splatGames>=2 trigger)
- Zombies taking a game sets shameGame (phase 9 withholds the delivery)
- Eaten = the run is over: GAME, SET, MASSACRE summary with games/sets survived
  and best run (localStorage); HUD shows sets in splatter (SETS·GAMES PTS)
- spentBall() helper so dead-ball paths can't clobber a changeover's beat
- T surface: splatPoint + explode exposed for verify scripts

Verified: game-1 cap 3 held 25s; changeover blocks taps+spawns then resumes;
6 games -> set+horde -> racket zombie; runGames=6 tempo ~6 spawns/10s;
eaten writes best; tennis regression 11/12 CPU returns; no console errors.

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

state.js

@@ -32,7 +32,11 @@ export const G = {
   bombs: 0,           // bomb-ball stock (max TUNE.bombMax); the next serve auto-consumes one
   killMeter: 0,       // splatter kills toward the next bomb reward (every TUNE.bombEvery)
   horde: null,        // active horde wave {t, spawnT, mgT} — machine-gun racket, no serving
-  splatGames: 0,      // splatter games you've won; the 2nd (and every one after) launches a horde
+  runGames: 0,        // games finished this run (either side) — the difficulty director
+  sets: [0, 0],       // splatter sets won [you, them]; 6 games = a set = a horde
+  changeover: false,  // the odd-game breather: no spawns, no serving, the boys mop
+  shameGame: false,   // they took a game — the next new-balls delivery is withheld
+  best: null,         // best run {games, sets}, loaded from localStorage when you get eaten
   lastScoreT: -9,     // idleT of the last score voice — rate-limits umpire during a horde
   eatenT: 0,          // time since you were eaten — gates the restart tap
   missLog: [],        // swing diagnostics ring buffer (tennis mode) — inspect via T.G.missLog