feat: redesign Elemental subtab in DisciplinesTab to group by mana type

docs/circular-deps.txt

@@ -1,4 +1,4 @@
 # Circular Dependencies
-Generated: 2026-05-28T17:49:52.546Z
+Generated: 2026-05-28T19:01:33.787Z
 
 No circular dependencies found. ✅

docs/dependency-graph.json

@@ -1,6 +1,6 @@
 {
   "_meta": {
-    "generated": "2026-05-28T17:49:50.766Z",
+    "generated": "2026-05-28T19:01:32.036Z",
     "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

@@ -130,7 +130,9 @@ Mana-Loop/
 │   │   │   │   ├── CraftingTab.tsx
 │   │   │   │   ├── DebugTab.test.ts
 │   │   │   │   ├── DebugTab.tsx
+│   │   │   │   ├── DisciplineCard.tsx
 │   │   │   │   ├── DisciplinesTab.tsx
+│   │   │   │   ├── ElementalSubtab.tsx
 │   │   │   │   ├── EquipmentTab.test.ts
 │   │   │   │   ├── EquipmentTab.tsx
 │   │   │   │   ├── GolemancyTab.test.ts