Prosperity - Loot Overhaul

This is a big feature release: the Prospector's Compass, party loot, Tribulation and Meridian integrations, milestones, and a lot more ways distance shapes what you find.

Added

• Prospector's Compass — a craftable compass that points toward the nearest container you haven't looted yet, with a tooltip explaining what it does.
• HUD peek panel now shows the distance and direction to your nearest unlooted container (bound by default).
• Party loot mode — teammates can share a single loot instance per container; works with FTB Teams and Open Parties & Claims out of the box.
• Distance scaling now covers fishing loot and trial chamber vaults and spawner rewards, in addition to the existing container pool.
• Tribulation integration — harder Tribulation difficulty tiers improve your instanced loot luck and increase the chance of tier-specific gear drops.
• Meridian integration — Meridian enchanted books appear in distance-tiered loot pools, and found items can roll distance-scaled Meridian enchants dynamically.
• Rarity-tiered enchantment pools inject into loot with a configurable add-chance gate.
• Bonus roll when you fully clear every container in a structure.
• /prosperity stats — check your personal looting statistics at any time.
• Exploration & Loot advancements — a new advancement tab tracks your milestones as you explore and loot.
• A one-time welcome message the first time you open an instanced container.
• Stale per-player loot entries can now be automatically evicted on a configurable schedule, keeping world saves tidy.

Fixed

• Double-chest loot indicators were anchored to the wrong half and the sparkle animation was playing incorrectly.
• HUD sprites could be silently dropped when ImmediatelyFast or Blur+ was installed.