fix: enchant-1 infinite perk interval 50→150 to match spec

The enchant-1 infinite perk on enchant-crafting discipline was using
value: 50 as the interval, granting +5 enchantPower every 50 XP past
threshold instead of every 150 XP per spec. This caused 3× power
overshoot (e.g. +45 at 600 XP vs spec's +15).

src/lib/game/data/disciplines/enchanter.ts

@@ -21,7 +21,7 @@ export const enchanterDisciplines: DisciplineDefinition[] = [
         id: 'enchant-1',
         type: 'infinite',
         threshold: 150,
-        value: 50,
+        value: 150,
         description: '+5 Enchantment Power per tier',
         bonus: { stat: 'enchantPower', amount: 5 },
       },