feat: clickable pause buttons, 2x dash with 30% slow, cleaver melee sweep

tools/ammo_sim.js

@@ -83,7 +83,7 @@ function boot(seed) {
 const AIM_JITTER = {
   bullet: 0.07, spread: 0.05, bounce: 0.07, boomerang: 0.05, pierce_drag: 0.04,
   cone: 0.03, flame: 0.03,
-  homing: 0, lob: 0, lob_trap: 0, lob_swarm: 0, slam: 0, saw: 0, beam: 0,
+  homing: 0, lob: 0, lob_trap: 0, lob_swarm: 0, slam: 0, saw: 0, beam: 0, sweep: 0,
 };
 
 const FLOOR = 3;          // mid-game enemy mix

tools/score_weapons.js

@@ -28,6 +28,7 @@ function effectiveDps(w) {
     case 'lob_trap':    return base * 1.3;                                     // direct + trap zone control
     case 'lob_swarm':   return (w.dmg * 6) / w.interval * 0.85;                // 6 homing maggots
     case 'slam':        return base * 1.3;                                     // AoE multi-hit
+    case 'sweep':       return base * 1.5;                                     // arc can hit multiple enemies
     case 'saw':         return base * 1.1;                                     // continuous contact
     case 'beam':        return (w.dmg * 1.0) / ((w.chargeTime || 0.8) + w.interval) * 1.2; // full-charge cycle, line pierce
     default:            return base;