fix: Apply pact affinity cast speed bonus to all spell casts (AC-13)

Previously the pact affinity cast speed bonus was only applied to invocation
spells. Per spec §6.2 and §10.2, it should apply to ALL spell casts (active,
equipment, and invocation).

Changes:
- invocation-utils.ts: Added computeAttackSpeedMultFromPactAffinity() helper
  that combines prestige upgrade + discipline bonus and applies the diminishing
  returns formula
- gameStore.ts: Compute total pact affinity (prestige + discipline) and apply
  cast speed bonus to attackSpeedMult passed to processCombatTick
- combat-actions.ts: Use attackSpeedMult directly for active/equipment spell cast
  progress (bonus already baked in)
- combat-invocation.ts: Use attackSpeedMult directly for invocation cast progress
  (bonus already baked in), removed redundant pactAffinity parameter

docs/circular-deps.txt

@@ -1,5 +1,5 @@
 # Circular Dependencies
-Generated: 2026-06-13T11:02:39.214Z
+Generated: 2026-06-13T11:42:23.525Z
 Found: 4 circular chain(s) — these MUST be fixed before modifying involved files.
 
 1. 1) data/guardian-encounters.ts > data/guardian-procedural.ts

docs/dependency-graph.json

@@ -1,6 +1,6 @@
 {
   "_meta": {
-    "generated": "2026-06-13T11:02:37.078Z",
+    "generated": "2026-06-13T11:42:21.085Z",
     "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."
   },
@@ -555,6 +555,8 @@
       "data/guardian-encounters.ts",
       "effects/discipline-effects.ts",
       "stores/combat-damage.ts",
+      "stores/combat-invocation.ts",
+      "stores/combat-melee.ts",
       "stores/combat-state.types.ts",
       "stores/dot-runtime.ts",
       "stores/golem-combat-actions.ts",
@@ -581,6 +583,24 @@
       "stores/prestigeStore.ts",
       "utils/spire-utils.ts"
     ],
+    "stores/combat-invocation.ts": [
+      "constants.ts",
+      "data/guardian-encounters.ts",
+      "effects/discipline-effects.ts",
+      "stores/combat-damage.ts",
+      "stores/combat-state.types.ts",
+      "types.ts",
+      "utils/index.ts",
+      "utils/invocation-utils.ts"
+    ],
+    "stores/combat-melee.ts": [
+      "constants.ts",
+      "data/guardian-encounters.ts",
+      "stores/combat-damage.ts",
+      "stores/combat-state.types.ts",
+      "types.ts",
+      "utils/index.ts"
+    ],
     "stores/combat-reset.ts": [
       "stores/combat-actions.ts",
       "stores/combat-state.types.ts",
@@ -589,7 +609,8 @@
       "utils/spire-utils.ts"
     ],
     "stores/combat-state.types.ts": [
-      "types.ts"
+      "types.ts",
+      "utils/invocation-utils.ts"
     ],
     "stores/combatStore.ts": [
       "data/guardian-encounters.ts",
@@ -934,6 +955,13 @@
       "utils/result.ts",
       "utils/safe-persist.ts"
     ],
+    "utils/invocation-utils.ts": [
+      "constants/spells.ts",
+      "data/guardian-encounters.ts",
+      "types.ts",
+      "utils/combat-utils.ts",
+      "utils/mana-utils.ts"
+    ],
     "utils/mana-utils.ts": [
       "constants.ts",
       "data/attunements.ts",

src/lib/game/stores/combat-actions.ts

@@ -134,6 +134,7 @@ export function processCombatTick(
     // ─── Spell casting (only when a valid spell is configured) ────────────────
     if (spellDef) {
       const disciplineEffects = computeDisciplineEffects();
+      // AC-13: Pact affinity cast speed bonus already applied to attackSpeedMult by gameStore
       const totalAttackSpeed = attackSpeedMult;
       const spellCastSpeed = spellDef.castSpeed || 1;
       const progressPerTick = HOURS_PER_TICK * spellCastSpeed * totalAttackSpeed;
@@ -205,7 +206,7 @@ export function processCombatTick(
 
         const isESpellAoe = !!eSpellDef.isAoe;
         const eSpellCastSpeed = eSpellDef.castSpeed || 1;
-        const eProgressPerTick = HOURS_PER_TICK * eSpellCastSpeed * attackSpeedMult;
+        const eProgressPerTick = HOURS_PER_TICK * eSpellCastSpeed * totalAttackSpeed;
         let eCastProgress = (eSpell.castProgress || 0) + eProgressPerTick;
 
         let eSafetyCounter = 0;

src/lib/game/stores/combat-invocation.ts

@@ -15,7 +15,6 @@ import {
   selectInvocationSpell,
   deductInvocationSpellCost,
   computeChargeFillRate,
-  computeCastSpeedBonus,
   computeCostMultiplier,
   computeDrainRateMultiplier,
   computeDrainPerTick,
@@ -172,12 +171,9 @@ function processActiveInvocation(
   const drainPerTick = computeDrainPerTick(invSpellDef.cost.amount, drainMult);
   invocationCharge = Math.max(0, invocationCharge - drainPerTick);
 
-  // Accumulate cast progress with pact affinity bonus
-  const pactAffinity = disciplineEffects.bonuses.pactAffinityBonus || 0;
-  const castSpeedBonus = computeCastSpeedBonus(pactAffinity);
-  const effectiveAttackSpeed = attackSpeedMult * (1 + castSpeedBonus);
+  // Cast progress uses attackSpeedMult which already includes pact affinity bonus (AC-12/AC-13)
   const invCastSpeed = invSpellDef.castSpeed || 1;
-  const invProgressPerTick = HOURS_PER_TICK * invCastSpeed * effectiveAttackSpeed;
+  const invProgressPerTick = HOURS_PER_TICK * invCastSpeed * attackSpeedMult;
   const newCastProgress = activeInvocation.castProgress + invProgressPerTick;
 
   if (newCastProgress >= 1 && floorHP > 0) {

src/lib/game/stores/gameStore.ts

@@ -32,6 +32,7 @@ import type { TickContext, TickWrites } from './tick-pipeline';
 import type { GameCoordinatorState } from './gameStore.types';
 import type { EnemyState } from '../types';
 import { applyEnemyDefenses as applyEnemyDefensesFromPipeline } from './pipelines/combat-tick';
+import { computeAttackSpeedMultFromPactAffinity } from '../utils/invocation-utils';
 
 // Track paused conversions already logged to avoid flooding the activity log every tick
 const loggedPausedConversions = new Set<string>();
@@ -289,8 +290,13 @@ export const useGameStore = create<GameCoordinatorStore>()(
             }));
             useCombatStore.setState({ equipmentSpellStates });
 
+            // AC-12/AC-13: Pact affinity cast speed bonus (prestige + discipline)
+            const attackSpeedMult = computeAttackSpeedMultFromPactAffinity(
+              ctx.prestige.prestigeUpgrades.pactAffinity || 0,
+              disciplineEffects.bonuses.pactAffinityBonus || 0,
+            );
             const cr = useCombatStore.getState().processCombatTick(
-              rawMana, elements, maxMana, 1,
+              rawMana, elements, maxMana, attackSpeedMult,
               combatCbs.onFloorCleared,
               combatCbs.makeOnDamageDealt(() => rawMana, () => elements, defCtx, addLog),
               ctx.prestige.signedPacts,

src/lib/game/utils/invocation-utils.ts

@@ -198,6 +198,21 @@ export function computeDrainRateMultiplier(disciplineBonuses: DisciplineBonuses)
   return Math.max(MIN_DRAIN_MULTIPLIER, BASE_DRAIN_MULTIPLIER + reduction);
 }
 
+// ─── Pact Affinity Attack Speed ───────────────────────────────────────────────
+
+/**
+ * Compute the effective attack speed multiplier from pact affinity.
+ * Combines prestige upgrade + discipline bonus, applies diminishing returns formula.
+ * Used by gameStore to compute the attackSpeedMult passed to processCombatTick.
+ */
+export function computeAttackSpeedMultFromPactAffinity(
+  pactAffinityUpgrade: number,
+  pactAffinityBonus: number,
+): number {
+  const total = pactAffinityUpgrade + pactAffinityBonus;
+  return 1 * (1 + computeCastSpeedBonus(total));
+}
+
 // ─── Drain Per Tick ────────────────────────────────────────────────────────────
 
 /**