Simple Challenge Roulette

Replaced: "Glass Cannon" → "Pacifist" — blocks only direct player damage to mobs (configurable: melee/projectiles/whitelist); indirect damage allowed. 7 New Modifiers:

• Clumsy (Easy) — 20% chance to drop held item on click.
• Vegetarian (Easy) — cannot eat meat.
• Heavy Burden (Medium) — speed scales with inventory fullness.
• Aquaphobia (Medium) — water and rain deal damage over time.
• Brittle (Hard) — tools and armor break twice as fast.
• No Trophies (Hard) — mobs drop no loot or XP.
• No Trading (Hard) — villagers and wandering traders refuse to trade.