fix: show effective post-multiplier stats on adventurer cards (#154)

Adds computeEffectiveAdventurerStats to tick.ts to calculate per-unit
gold/s, essence/s, and combat power with all active multipliers applied
(upgrades, prestige, equipment, echo, crafted, companions). Updates
AdventurerCard to display these effective values so players can see the
true contribution of each adventurer rather than raw base stats.

apps/web/src/components/game/adventurerPanel.tsx

@@ -9,6 +9,7 @@
 /* eslint-disable complexity -- Complex component with many render paths */
 import { type JSX, useState } from "react";
 import { useGame } from "../../context/gameContext.js";
+import { computeEffectiveAdventurerStats } from "../../engine/tick.js";
 import { cdnImage } from "../../utils/cdn.js";
 import { LockToggle } from "../ui/lockToggle.js";
 import type { Adventurer } from "@elysium/types";
@@ -76,12 +77,19 @@ const computeMaxAffordable = (adventurer: Adventurer, gold: number): number => {
   return quantity;
 };
 
+interface EffectiveAdventurerStats {
+  readonly combatPower:      number;
+  readonly essencePerSecond: number;
+  readonly goldPerSecond:    number;
+}
+
 interface AdventurerCardProperties {
-  readonly adventurer:   Adventurer;
-  readonly currentGold:  number;
-  readonly batchSize:    BatchSize;
-  readonly unlockHint:   string | undefined;
-  readonly formatNumber: (n: number)=> string;
+  readonly adventurer:     Adventurer;
+  readonly currentGold:    number;
+  readonly batchSize:      BatchSize;
+  readonly unlockHint:     string | undefined;
+  readonly formatNumber:   (n: number)=> string;
+  readonly effectiveStats: EffectiveAdventurerStats;
 }
 
 /**
@@ -92,6 +100,7 @@ interface AdventurerCardProperties {
  * @param props.batchSize - The selected batch size.
  * @param props.unlockHint - Optional quest name that unlocks this adventurer.
  * @param props.formatNumber - The number formatting utility function.
+ * @param props.effectiveStats - The post-multiplier per-unit stats.
  * @returns The JSX element.
  */
 const AdventurerCard = ({
@@ -100,6 +109,7 @@ const AdventurerCard = ({
   batchSize,
   unlockHint,
   formatNumber,
+  effectiveStats,
 }: AdventurerCardProperties): JSX.Element => {
   const { buyAdventurer } = useGame();
 
@@ -134,17 +144,17 @@ const AdventurerCard = ({
       <div className="adventurer-info">
         <h3>{adventurer.name}</h3>
         <p>
-          {formatNumber(adventurer.goldPerSecond)}
+          {formatNumber(effectiveStats.goldPerSecond)}
           {" gold/s each"}
         </p>
         {adventurer.essencePerSecond > 0
           && <p>
-            {formatNumber(adventurer.essencePerSecond)}
+            {formatNumber(effectiveStats.essencePerSecond)}
             {" essence/s each"}
           </p>
         }
         <p>
-          {formatNumber(adventurer.combatPower)}
+          {formatNumber(effectiveStats.combatPower)}
           {" combat power each"}
         </p>
       </div>
@@ -280,6 +290,10 @@ const AdventurerPanel = (): JSX.Element => {
               adventurer={adventurer}
               batchSize={batchSize}
               currentGold={state.resources.gold}
+              effectiveStats={computeEffectiveAdventurerStats(
+                state,
+                adventurer.id,
+              )}
               formatNumber={formatNumber}
               key={adventurer.id}
               unlockHint={adventurerUnlockHints.get(adventurer.id)}