Expand Cleric & Brewing System

The Cleric villager currently has limited interaction with the Brewing Stand despite it being his workstation. This proposal expands the Cleric role by introducing purchasable potion recipes and improved brewing guidance, while maintaining game balance. 1. Learnable Potion Recipes Clerics can sell Potion Recipe Scrolls. Player purchases a scroll. Right-click to permanently learn the recipe. Brewing Stand gains a small green recipe book (similar to crafting table). The book shows brewing steps and required ingredients visually. This helps new players understand brewing without using external guides. 2. Trade Expansion by Level Novice / Apprentice Potion of Healing I Potion of Fire Resistance Recipe: Healing I Recipe: Fire Resistance Journeyman / Expert Potion of Regeneration I Potion of Strength Recipe versions of the above Master Limited trades: Regeneration II Duration upgrade service (emeralds + redstone/glowstone) Rare Instant Health II trades Recipes cost 8–18 emeralds depending on tier. 3. Balance Considerations High-tier potions are expensive and limited in stock. Advanced potions cannot be reduced to 1 emerald via discounts. Nether exploration remains necessary for blaze rods and ingredients. Only the Weakness potion recipe is sold among negative potions (fits lore due to zombie villager curing).