Choose the spawn area by player role: Hunter avatars look for a
HunterSpawnArea-tagged collider, Hiders for HiderSpawnArea. When the
role-specific area is missing, fall back to the shared SpawnArea tag, and
when that is absent too, keep the existing client-id ring placement.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>