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

docs/dependency-graph.json

@@ -1,6 +1,6 @@
 {
   "_meta": {
-    "generated": "2026-06-11T07:06:04.118Z",
+    "generated": "2026-06-11T07:08:57.908Z",
     "description": "Import dependency graph for src/lib/game. Keys are files, values are arrays of files they import.",
     "usage": "To find what a file affects, search for its path in the VALUES. To find what a file depends on, look at its KEY entry."
   },

docs/project-structure.txt

@@ -356,6 +356,7 @@ Mana-Loop/
 │   │   │   │   ├── fabricator-wizard-recipes.ts
 │   │   │   │   ├── guardian-data.ts
 │   │   │   │   ├── guardian-encounters.ts
+│   │   │   │   ├── guardian-procedural.ts
 │   │   │   │   └── loot-drops.ts
 │   │   │   ├── effects/
 │   │   │   │   ├── discipline-effects.ts