Improve adaptive bot gear progression

[pmbstyle]

Summary

• make cold bots choose practical, role-appropriate equipment upgrades instead of defaulting to expensive best-in-slot targets
• equip acquired upgrades immediately and keep the persisted equipment summary in sync
• share useful weapon, armour, and jewelry drops with the party member who benefits most
• account for real combat readiness when deciding whether a bot can farm a source alone

Why

Bots could leave a fresh grade progression without a target when entry weapons exceeded the early price band. Equipment also remained unused in cold inventory, and party drops stayed with their random recipient even when another party member needed them.

Player impact

Bots progress through gear tiers more credibly: they prioritise a viable entry weapon, obtain and equip practical armour, coordinate difficult farming through parties, and pass useful drops to the right teammate.

Validation

• npm run check
• npm test
• focused bot gear, party loot, background drop, crafting, market, and recruitment regressions