fix: persist CraftingTab sub-tab selection across tab navigation

- Add activeCraftingSubTab state + setActiveCraftingSubTab action to
  craftingStore (persisted to localStorage via zustand persist middleware)
- Add CraftingAttunement type to craftingStore.types and re-export from
  stores/index.ts barrel
- Update CraftingTab.tsx to read/write active sub-tab from store instead
  of local useState, so selection survives component remount
- Add default 'fabricator' value in craft-initial-state.ts

docs/dependency-graph.json

@@ -1,6 +1,6 @@
 {
   "_meta": {
-    "generated": "2026-06-09T13:31:28.048Z",
+    "generated": "2026-06-09T16:48:18.218Z",
     "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."
   },