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

src/lib/game/data/disciplines/elemental-regen-advanced.ts

@@ -0,0 +1,185 @@
+// ─── Elemental Regen Disciplines (Composite + Exotic) ─────────────────────────
+// Regen disciplines for composite and exotic mana types.
+// All are BASE attunement so they are available to every role once the element is unlocked.
+
+import { DisciplinesAttunementType } from '../../types/disciplines';
+import type { DisciplineDefinition } from '../../types/disciplines';
+
+export const elementalRegenAdvancedDisciplines: DisciplineDefinition[] = [
+  // ── Composite Elements ─────────────────────────────────────────────────────
+  {
+    id: 'regen-metal',
+    name: 'Metal Mana Flow',
+    attunement: DisciplinesAttunementType.BASE,
+    manaType: 'metal',
+    baseCost: 12,
+    description: 'Attune your metal mana to regenerate passively over time.',
+    statBonus: { stat: 'regen_metal', baseValue: 0.35 },
+    difficultyFactor: 160,
+    scalingFactor: 80,
+    drainBase: 2,
+    requires: ['metal'],
+    perks: [
+      {
+        id: 'regen-metal-1',
+        type: 'once',
+        threshold: 150,
+        value: 0,
+        description: '+0.35 Metal Regen/tick',
+      },
+      {
+        id: 'regen-metal-inf',
+        type: 'infinite',
+        threshold: 400,
+        value: 100,
+        description: 'Every 100 XP: +0.15 Metal Regen/tick',
+      },
+    ],
+  },
+  {
+    id: 'regen-sand',
+    name: 'Sand Mana Flow',
+    attunement: DisciplinesAttunementType.BASE,
+    manaType: 'sand',
+    baseCost: 12,
+    description: 'Attune your sand mana to regenerate passively over time.',
+    statBonus: { stat: 'regen_sand', baseValue: 0.35 },
+    difficultyFactor: 160,
+    scalingFactor: 80,
+    drainBase: 2,
+    requires: ['sand'],
+    perks: [
+      {
+        id: 'regen-sand-1',
+        type: 'once',
+        threshold: 150,
+        value: 0,
+        description: '+0.35 Sand Regen/tick',
+      },
+      {
+        id: 'regen-sand-inf',
+        type: 'infinite',
+        threshold: 400,
+        value: 100,
+        description: 'Every 100 XP: +0.15 Sand Regen/tick',
+      },
+    ],
+  },
+  {
+    id: 'regen-lightning',
+    name: 'Lightning Mana Flow',
+    attunement: DisciplinesAttunementType.BASE,
+    manaType: 'lightning',
+    baseCost: 12,
+    description: 'Attune your lightning mana to regenerate passively over time.',
+    statBonus: { stat: 'regen_lightning', baseValue: 0.35 },
+    difficultyFactor: 160,
+    scalingFactor: 80,
+    drainBase: 2,
+    requires: ['lightning'],
+    perks: [
+      {
+        id: 'regen-lightning-1',
+        type: 'once',
+        threshold: 150,
+        value: 0,
+        description: '+0.35 Lightning Regen/tick',
+      },
+      {
+        id: 'regen-lightning-inf',
+        type: 'infinite',
+        threshold: 400,
+        value: 100,
+        description: 'Every 100 XP: +0.15 Lightning Regen/tick',
+      },
+    ],
+  },
+  // ── Exotic Elements ────────────────────────────────────────────────────────
+  {
+    id: 'regen-crystal',
+    name: 'Crystal Mana Flow',
+    attunement: DisciplinesAttunementType.BASE,
+    manaType: 'crystal',
+    baseCost: 18,
+    description: 'Attune your crystal mana to regenerate passively over time.',
+    statBonus: { stat: 'regen_crystal', baseValue: 0.25 },
+    difficultyFactor: 220,
+    scalingFactor: 110,
+    drainBase: 3,
+    requires: ['crystal'],
+    perks: [
+      {
+        id: 'regen-crystal-1',
+        type: 'once',
+        threshold: 200,
+        value: 0,
+        description: '+0.25 Crystal Regen/tick',
+      },
+      {
+        id: 'regen-crystal-inf',
+        type: 'infinite',
+        threshold: 500,
+        value: 100,
+        description: 'Every 100 XP: +0.1 Crystal Regen/tick',
+      },
+    ],
+  },
+  {
+    id: 'regen-stellar',
+    name: 'Stellar Mana Flow',
+    attunement: DisciplinesAttunementType.BASE,
+    manaType: 'stellar',
+    baseCost: 18,
+    description: 'Attune your stellar mana to regenerate passively over time.',
+    statBonus: { stat: 'regen_stellar', baseValue: 0.25 },
+    difficultyFactor: 220,
+    scalingFactor: 110,
+    drainBase: 3,
+    requires: ['stellar'],
+    perks: [
+      {
+        id: 'regen-stellar-1',
+        type: 'once',
+        threshold: 200,
+        value: 0,
+        description: '+0.25 Stellar Regen/tick',
+      },
+      {
+        id: 'regen-stellar-inf',
+        type: 'infinite',
+        threshold: 500,
+        value: 100,
+        description: 'Every 100 XP: +0.1 Stellar Regen/tick',
+      },
+    ],
+  },
+  {
+    id: 'regen-void',
+    name: 'Void Mana Flow',
+    attunement: DisciplinesAttunementType.BASE,
+    manaType: 'void',
+    baseCost: 18,
+    description: 'Attune your void mana to regenerate passively over time.',
+    statBonus: { stat: 'regen_void', baseValue: 0.25 },
+    difficultyFactor: 220,
+    scalingFactor: 110,
+    drainBase: 3,
+    requires: ['void'],
+    perks: [
+      {
+        id: 'regen-void-1',
+        type: 'once',
+        threshold: 200,
+        value: 0,
+        description: '+0.25 Void Regen/tick',
+      },
+      {
+        id: 'regen-void-inf',
+        type: 'infinite',
+        threshold: 500,
+        value: 100,
+        description: 'Every 100 XP: +0.1 Void Regen/tick',
+      },
+    ],
+  },
+];

src/lib/game/data/disciplines/elemental-regen.ts

@@ -0,0 +1,86 @@
+// ─── Elemental Regen Disciplines (Base + Utility) ─────────────────────────────
+// One discipline per mana type that provides passive regen for that element.
+// All are BASE attunement so they are available to every role once the element is unlocked.
+
+import { DisciplinesAttunementType } from '../../types/disciplines';
+import type { DisciplineDefinition } from '../../types/disciplines';
+
+const BASE_REGEN = 0.5;
+const BASE_DRAIN = 1.5;
+const BASE_DIFF = 120;
+const BASE_SCALE = 60;
+
+function makeBaseRegen(id: string, name: string, manaType: string, cost: number): DisciplineDefinition {
+  const shortId = id.replace('regen-', '');
+  return {
+    id,
+    name: `${name} Mana Flow`,
+    attunement: DisciplinesAttunementType.BASE,
+    manaType: manaType as DisciplineDefinition['manaType'],
+    baseCost: cost,
+    description: `Attune your ${name.toLowerCase()} mana to regenerate passively over time.`,
+    statBonus: { stat: `regen_${shortId}` as DisciplineDefinition['statBonus']['stat'], baseValue: BASE_REGEN },
+    difficultyFactor: BASE_DIFF,
+    scalingFactor: BASE_SCALE,
+    drainBase: BASE_DRAIN,
+    requires: [manaType],
+    perks: [
+      {
+        id: `${id}-1`,
+        type: 'once',
+        threshold: 100,
+        value: 0,
+        description: `+${BASE_REGEN} ${name} Regen/tick`,
+      },
+      {
+        id: `${id}-inf`,
+        type: 'infinite',
+        threshold: 300,
+        value: 100,
+        description: `Every 100 XP: +0.25 ${name} Regen/tick`,
+      },
+    ],
+  };
+}
+
+export const elementalRegenDisciplines: DisciplineDefinition[] = [
+  // ── Base Elements ──────────────────────────────────────────────────────────
+  makeBaseRegen('regen-fire', 'Fire', 'fire', 8),
+  makeBaseRegen('regen-water', 'Water', 'water', 8),
+  makeBaseRegen('regen-air', 'Air', 'air', 8),
+  makeBaseRegen('regen-earth', 'Earth', 'earth', 8),
+  makeBaseRegen('regen-light', 'Light', 'light', 8),
+  makeBaseRegen('regen-dark', 'Dark', 'dark', 8),
+  makeBaseRegen('regen-death', 'Death', 'death', 8),
+
+  // ── Utility Element ────────────────────────────────────────────────────────
+  {
+    id: 'regen-transference',
+    name: 'Transference Mana Flow',
+    attunement: DisciplinesAttunementType.BASE,
+    manaType: 'transference',
+    baseCost: 6,
+    description: 'Attune your transference mana to regenerate passively over time.',
+    statBonus: { stat: 'regen_transference', baseValue: 0.4 },
+    difficultyFactor: 100,
+    scalingFactor: 50,
+    drainBase: 1,
+    requires: ['transference'],
+    perks: [
+      {
+        id: 'regen-transference-1',
+        type: 'once',
+        threshold: 100,
+        value: 0,
+        description: '+0.4 Transference Regen/tick',
+      },
+      {
+        id: 'regen-transference-inf',
+        type: 'infinite',
+        threshold: 300,
+        value: 100,
+        description: 'Every 100 XP: +0.2 Transference Regen/tick',
+      },
+    ],
+  },
+];

src/lib/game/data/disciplines/index.ts

@@ -2,6 +2,8 @@
 // Aggregates all discipline definitions into a single ALL_DISCIPLINES array
 
 import { baseDisciplines } from './base';
+import { elementalRegenDisciplines } from './elemental-regen';
+import { elementalRegenAdvancedDisciplines } from './elemental-regen-advanced';
 import { enchanterDisciplines } from './enchanter';
 import { enchanterUtilityDisciplines } from './enchanter-utility';
 import { enchanterSpellDisciplines } from './enchanter-spells';
@@ -12,6 +14,8 @@ import type { DisciplineDefinition } from '../../types/disciplines';
 
 export const ALL_DISCIPLINES: DisciplineDefinition[] = [
   ...baseDisciplines,
+  ...elementalRegenDisciplines,
+  ...elementalRegenAdvancedDisciplines,
   ...enchanterDisciplines,
   ...enchanterUtilityDisciplines,
   ...enchanterSpellDisciplines,
@@ -21,6 +25,8 @@ export const ALL_DISCIPLINES: DisciplineDefinition[] = [
 ];
 
 export { baseDisciplines } from './base';
+export { elementalRegenDisciplines } from './elemental-regen';
+export { elementalRegenAdvancedDisciplines } from './elemental-regen-advanced';
 export { enchanterDisciplines } from './enchanter';
 export { enchanterUtilityDisciplines } from './enchanter-utility';
 export { enchanterSpellDisciplines } from './enchanter-spells';