Make cold bot progression target real fights

[pmbstyle]

What changed

Cold bots now pursue the actual monsters needed for their equipment goals. Their combat uses real character stats, skills, gear effects, and the defeated monster's own drop table. Nearby aggressive monsters can still interrupt a targeted hunt, so farming remains a real encounter rather than a scripted kill.

Parties now preserve shared combat outcomes correctly: each member keeps personal progress, while the population view records the encounter once. Party creation is safely queued behind the cold scheduler so aligned timers cannot silently prevent new parties from forming.

Why

Previously a party result could be overwritten by an earlier state snapshot, losing its target and making the group appear to fight unrelated monsters. The party-formation timer could also collide with the scheduler on every interval and never run.

Validation

• Full automated test suite (
  pm test)
• Syntax validation
• Live population telemetry after restart: targeted party fights retained their target, real defeated NPCs, and one aggregate owner per party encounter
• Live scheduler and party-formation checks