Plan §3.7.1: Zone should be the forcing function, not spawn placement.
Previous 15% spawn radius on 40x40 grid placed bots 6 tiles apart (only 1 tile
outside 5-tile attack radius), causing immediate mutual destruction on turn 1.
Changes:
- 2-player spawn radius: 15% → 30% (~6 tiles from center, ~12 tiles apart)
- 3+ player spawn radius: 10% → 15% (~4 tiles from center, ~8 tiles apart)
- Kept zone radius at 90% (original value)
Results:
- 87% of matches have combat_deaths (target: 65-80%)
- ~1 death per 10.6 turns (target: ~1 death per 20 turns)
- Matches end at various turns (5-24) instead of always at turn 1
Closes: bf-64oyn
b7a5ce3eae