feat: matchmaking reads playerProfiles for skill + faction balancing

[ibloud]

Summary

Update queue assembly to consume profile data for skill/faction balancing.

Implementation

• Read profile stats:
  • ACPL/MMR proxy
  • deck.primarySuit
  • archetype/unclassified
• Balancing policy:
  • Skill tolerance first (|ACPL_A - ACPL_B| <= 40, widen to 80 after 60s)
  • Faction coverage second (target >=1 Diamonds, >=1 Hearts, <=2 duplicate suits)
  • Isolate unclassified beginners into onboarding pool

Acceptance Criteria

• 4-player queue produces balanced tables per documented algorithm.
• Tolerance widening behavior works after wait threshold.
• Beginners can be routed to onboarding pool.