feat: add per-element mana regen disciplines for all 14 mana types

- Create data/disciplines/elemental-regen.ts (base + utility elements)
- Create data/disciplines/elemental-regen-advanced.ts (composite + exotic)
- Wire into ALL_DISCIPLINES via index.ts and discipline-slice.ts
- Add perElementRegenBonus to ComputedEffects type
- Merge regen_{element} discipline bonuses in computeAllEffects()
- Apply per-element regen to element mana each tick in gameStore
- Add 'Elemental Regen' and 'Advanced Regen' tabs to DisciplinesTab UI

docs/circular-deps.txt

@@ -1,5 +1,5 @@
 # Circular Dependencies
-Generated: 2026-05-25T09:51:15.852Z
+Generated: 2026-05-25T09:55:36.893Z
 Found: 6 circular chain(s) — these MUST be fixed before modifying involved files.
 
 1. Processed 132 files (1.5s) (2 warnings)

docs/dependency-graph.json

@@ -1,6 +1,6 @@
 {
   "_meta": {
-    "generated": "2026-05-25T09:51:14.159Z",
+    "generated": "2026-05-25T09:55:35.204Z",
     "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

@@ -246,6 +246,8 @@ Mana-Loop/
 │       │   ├── data/
 │       │   │   ├── disciplines/
 │       │   │   │   ├── base.ts
+│       │   │   │   ├── elemental-regen-advanced.ts
+│       │   │   │   ├── elemental-regen.ts
 │       │   │   │   ├── enchanter-special.ts
 │       │   │   │   ├── enchanter-spells.ts
 │       │   │   │   ├── enchanter-utility.ts