fix: resolve 7 medium-priority bugs from audit #372

- #371: Replace Math.random() with seeded PRNG in getSpireEnemyArmor/Barrier
- #370: Add mana refund when cancelling pact ritual in cancelPactRitual
- #367: Add ENCHANT_MASTERY check for design slot 2 in crafting store
- #364: Fix useGameDerived to read crafting data from useCraftingStore
- #363: Clamp recovery room regen delta to prevent negative mana loss
- #365: Add shield/barrier/healthRegen fields to all procedural guardians
- #362: Refactor enchanting tick pipeline to return writes instead of direct store calls

Extracted procedural guardian generators into guardian-procedural.ts to stay under 400-line limit.

All 1158 tests pass.

docs/circular-deps.txt

@@ -1,5 +1,5 @@
 # Circular Dependencies
-Generated: 2026-06-11T07:06:06.140Z
+Generated: 2026-06-11T07:08:59.875Z
 Found: 3 circular chain(s) — these MUST be fixed before modifying involved files.
 
 1. 1) stores/golem-combat-actions.ts > stores/golem-combat-helpers.ts