fix(#165,#166,#167,#168,#169,#171,#172): resolve 7 open bug issues

#172 - Grimoire tab: removed dead 'loaded' state guard that permanently showed loading
#169 - Transference Mana Flow: added elements param to checkDisciplinePrerequisites so mana type unlocks are verified
#168 - Perk descriptions: wired 4 broken perks (enchant-2, channel-1, golem-2, efficiency-1) with actual bonus effects; fixed enchant-1 interval (5→50); fixed study-mana-enchantments stat (maxMana→maxManaBonus)
#171 - Shields: removed all shield equipment (4 types), recipes, category, slot mappings; added 'shields' to AGENTS.md banned list
#166 - regenMultiplier: merged disciplineEffects.multipliers.regenMultiplier into computeAllEffects()
#165 - Meditation cap: added meditationCap display to ManaStatsSection UI; updated perk description
#167 - XP accumulation: added Meditative Mastery base discipline with disciplineXpBonus stat; wired into tick pipeline

src/lib/game/data/crafting-recipes.ts

@@ -120,23 +120,7 @@ export const CRAFTING_RECIPES: Record<string, CraftingRecipe> = {
     unlocked: false,
   },
   
-  shieldBlueprint: {
-    id: 'shieldBlueprint',
-    equipmentTypeId: 'runicShield',
-    name: 'Runic Shield',
-    description: 'A shield engraved with protective runes.',
-    rarity: 'rare',
-    materials: {
-      manaCrystalDust: 10,
-      arcaneShard: 6,
-      elementalCore: 2,
-    },
-    manaCost: 450,
-    craftTime: 5,
-    minFloor: 28,
-    unlocked: false,
-  },
-  
+
   hatBlueprint: {
     id: 'hatBlueprint',
     equipmentTypeId: 'wizardHat',