feat: add equipment set bonuses and boss bounty runestones

- Define EquipmentSet type + computeSetBonuses utility in packages/types
- Add setId field to Equipment type and assign sets to 27 equipment items
- Create 9 named equipment sets (Iron Vanguard → Eternal Throne) with 2pc/3pc bonuses
- Apply set combat multiplier in boss route
- Apply set gold/click multipliers in tick engine and click handler
- Include set bonuses in anti-cheat delta validation
- Show active set bonus strip + set badge per card in EquipmentPanel
- Add boss first-kill bounty runestones (scaling 1–10 per boss tier)
- Update AboutPanel and IDEAS.md

apps/web/src/engine/tick.ts

@@ -1,4 +1,6 @@
 import type { Achievement, Equipment, GameState } from "@elysium/types";
+import { computeSetBonuses } from "@elysium/types";
+import { EQUIPMENT_SETS } from "../data/equipmentSets.js";
 import { updateChallengeProgress } from "../utils/dailyChallenges.js";
 
 /**
@@ -57,6 +59,7 @@ export const applyTick = (state: GameState, deltaSeconds: number): GameState =>
     (mult, e) => mult * (e.bonus.goldMultiplier ?? 1),
     1,
   );
+  const setGoldMultiplier = computeSetBonuses(equippedItems.map((e) => e.id), EQUIPMENT_SETS).goldMultiplier;
 
   const runestonesIncome = state.prestige.runestonesIncomeMultiplier ?? 1;
   const runestonesEssence = state.prestige.runestonesEssenceMultiplier ?? 1;
@@ -88,6 +91,7 @@ export const applyTick = (state: GameState, deltaSeconds: number): GameState =>
       prestige *
       runestonesIncome *
       equipmentGoldMultiplier *
+      setGoldMultiplier *
       deltaSeconds;
 
     essenceGained +=
@@ -228,7 +232,7 @@ export const applyTick = (state: GameState, deltaSeconds: number): GameState =>
       essence: newEssence,
       crystals: capResource(state.resources.crystals + questCrystals + challengeCrystals),
     },
-    dailyChallenges: updatedDailyChallenges,
+    ...(updatedDailyChallenges !== undefined ? { dailyChallenges: updatedDailyChallenges } : {}),
     player: {
       ...state.player,
       totalGoldEarned: newTotalGoldEarned,
@@ -271,9 +275,11 @@ export const calculateClickPower = (state: GameState): number => {
     .filter((u) => u.purchased && u.target === "click")
     .reduce((mult, upgrade) => mult * upgrade.multiplier, 1);
 
-  const equipmentClickMultiplier = (state.equipment ?? [])
-    .filter((e) => e.equipped && e.bonus.clickMultiplier != null)
+  const equippedItems = (state.equipment ?? []).filter((e) => e.equipped);
+  const equipmentClickMultiplier = equippedItems
+    .filter((e) => e.bonus.clickMultiplier != null)
     .reduce((mult, e) => mult * (e.bonus.clickMultiplier ?? 1), 1);
+  const setClickMultiplier = computeSetBonuses(equippedItems.map((e) => e.id), EQUIPMENT_SETS).clickMultiplier;
 
   const runestonesClick = state.prestige.runestonesClickMultiplier ?? 1;
 
@@ -282,6 +288,7 @@ export const calculateClickPower = (state: GameState): number => {
     clickMultiplier *
     state.prestige.productionMultiplier *
     runestonesClick *
-    equipmentClickMultiplier
+    equipmentClickMultiplier *
+    setClickMultiplier
   );
 };