Splatter: thinner wound blood + a bare rally tap also serves

- Bleed dialed way down — thin, steady trickles (a fine spurt from the neck
  stump) instead of the gushing cloud; tighter spread, shorter-lived, capped low.
- Rapid serve is easier to reach: a plain tap MID-RALLY now fires at the
  auto-target too (not only flick/drag/hold), so you can pump the screen while
  the last ball's still up. Pretoss keeps its toss ritual; the duel stays tennis.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

gameplay.js

@@ -573,6 +573,9 @@ export function keyPressed(code) {
       && (G.phase === 'pretoss' || G.phase === 'rally')) {
     const flick = takeFlickAim();
     if (flick) { dragServe(flick); return; } // dragServe handles GUN (burst) and the live-ball banish
+    // a bare tap MID-RALLY serves at the auto-target too — pump the screen to keep the balls
+    // coming while the last one's still up. (pretoss keeps its toss ritual, handled below.)
+    if (G.phase === 'rally') { dragServe(null); return; }
   }
   if (G.phase === 'pretoss' && score.server === 'P') {
     if (tryGunBurst()) return; // GUN selected: the serve gesture pops a burst, no ball