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>

zombies.js

@@ -6,7 +6,7 @@
 import { TUNE, COURT } from './config.js';
 import { G, P, ball, sendBoy, setupPoint } from './state.js';
 import { splat, moan, pock, voice, boom, swish } from './audio.js';
-import { splatPoint, cheer } from './gameplay.js';
+import { splatPoint, cheer, spentBall } from './gameplay.js';
 
 export const zombies = []; // {x, z, v, walkT, variant: 'a'|'b'|'c'}
 export const gore = [];    // lawn decals {x, z, r, a}  — the flat ground layer
@@ -118,12 +118,14 @@ export function updateZombies(dt) {
 
   if (G.mode === 'splatter') { // transition spawns are scripted, not timed
     G.splatT += dt;
-    if (G.horde) tickHorde(dt); // horde: dense spawns + machine gun, ignores zMax
-    else {
+    if (G.horde) tickHorde(dt); // horde: dense spawns + machine gun, ignores the cap
+    else if (!G.changeover) {   // changeovers are a real breather — no fresh spawns
       spawnT -= dt;
-      if (spawnT <= 0 && zombies.length < TUNE.zMax) {
+      // the spawn director: the match's age (games finished) sets both crowd size and tempo
+      const cap = Math.min(TUNE.zMaxCap, TUNE.zMax + G.runGames);
+      if (spawnT <= 0 && zombies.length < cap) {
         spawnZombie((Math.random() * 2 - 1) * 4.8, -1.5 - Math.random(), Math.random() < 0.5 ? 'a' : 'b');
-        spawnT = TUNE.zSpawnEvery;
+        spawnT = Math.max(TUNE.zSpawnMin, TUNE.zSpawnEvery - G.runGames * TUNE.zSpawnStep);
       }
     }
   }
@@ -148,13 +150,18 @@ export function updateZombies(dt) {
       voice('game_set_massacre', 0.8);
       G.mode = 'eaten'; ball.active = false; G.flash = null; // zombies keep shambling for ambience
       G.horde = null; pellets.length = 0;                    // the swarm stops; the eaten screen takes over
+      try { // the run is over — settle it against the best (games survived, sets as tiebreak)
+        const b = JSON.parse(localStorage.splatterBest || 'null') || { games: 0, sets: 0 };
+        if (G.runGames > b.games) { b.games = G.runGames; b.sets = G.sets[0]; localStorage.splatterBest = JSON.stringify(b); }
+        G.best = b;
+      } catch (e) { G.best = null; } // private mode etc. — the summary just skips the best line
     }
     if (ball.active && ball.lastHit === 'P' && ball.y < 1.9) {
       const d = Math.hypot(ball.x - zb.x, ball.z - zb.z);
       if (d < 0.55) {
         if (ball.bomb) { // detonate on first contact, whatever the pace
-          explode(ball.x, ball.z); ball.active = false; ball.bomb = false;
-          G.phase = 'over'; G.overT = TUNE.splatterOverT; break; // zombies mutated — stop this frame's loop
+          explode(ball.x, ball.z); ball.bomb = false;
+          spentBall(); break; // zombies mutated — stop this frame's loop
         }
         if (zb.variant === 'r') { // mini-boss: splat-quality wounds it; soft balls it rallies (racketAI)
           if ((ball.pow || 0) >= TUNE.zSplatQ) {