Zombie tennis: one game per opponent, blood only

Triage failed the only test that matters — "i think the normal player does
not grasp this" — and the lesson across four drill designs is that every
invented rule needs teaching, while the rules the scene already implies need
none. So the new mode is the game's own oldest rule: tennis.

MATCH TEST in the back room (#match). One game per opponent, real 15/30/40
scoring. Built on top of the duel machinery: G.match runs a permanent
interlude, which is already what makes serving tennis-like, hides the rack,
quiets the spawn director and wakes racketAI. The one change is in
resolveInterlude — a settled point feeds matchPoint instead of ending
anything. About 90 lines for a whole mode, because the deepest system in the
repo was already built.

The score is the body: a quarter of its pool per point won, floored at 1, so
a love game walks the racket zombie through every wound stage and the game
point fells it. Its points draw your blood — hp--, eaten at zero, matchHeal 2
per game won is how you last. Regicide is inherited: kill the body mid-game
and the game banks by hand.

The timing is drawn, per Oliver's ask: an approach ring around the incoming
ball that kisses a fixed inner ring exactly at the sweet contact distance
(gold inside the band), and an apex band beside the toss spanning the same
0.12m keyPressed scores as perfect, with a tick riding the live ball. Both
cues use the mechanics' own numbers, so the picture cannot lie.

Verified by autopilot: 7 games in 90 simulated seconds, opponents 1..8, pools
4/6/8/10, wounds tracking points exactly.

36 tests, 15 seeds clean.

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

src/config.js

@@ -379,6 +379,19 @@ export const TUNE = {
                     // AND a 1 hp body skips every ZWOUND stage, so the gore art never renders.
                     // Also flattens triage — pre-softening a heavy IS the planning layer
   drillCaughtBack: 45, // s of ramp handed back when one reaches you. A real setback, not a reset
+  // ---- ZOMBIE TENNIS (beats.startMatch) — the exhibition match. One game per opponent, blood only.
+  matchOppHp: 4,    // the first opponent's pool. FOUR, deliberately: a quarter comes off per point
+                    // won, so a love game walks it through every wound stage and the game point
+                    // fells it — the scoreboard and the body agree all the way down
+  matchOppHpPer: 2, // extra pool per opponent felled — later corpses soak more regicide punishment
+  matchHeal: 2,     // hp back for a game won (the duel's healPerDuel rate) — a clean game is how
+                    // you last; their every point costs 1 of your playerHp 4
+  // The timing windows, DRAWN (the match's whole ask: "what is the possible tap window, what is the
+  // sweet spot"). Numbers shared with the mechanics they visualise, so the picture cannot lie:
+  matchRingFar: 9,  // m — the approach ring fades in once the incoming ball is this close
+  matchRingSweet: 2.7, // m — contact distance where the rings kiss (the 30-tapped-points benchmark
+                       // lands hits tapping at 2.2..3.2 m, so the sweet spot is its centre)
+  matchRingBand: 0.5,  // m either side of sweet that draws gold — the plausible window, made visible
   fps: 60,          // frame cap — 30 halves battery/heat but Oliver felt it; smoothness wins (0 = uncapped)
   lowPower: 1,      // >= 0.5 caps RES at 3 (−44% of pixels painted per frame) — the battery saver,
                     // flippable live from the T panel. DEFAULT ON since 2026-08-08: Oliver judged