chore: clarify equipment combat bonus applies to boss fights only (#83)

## Summary

Resolves player confusion about equipment combat bonuses not affecting quest combat power. The behaviour is by design — combat multipliers only apply to boss DPS — but this was never communicated anywhere.

- **Equipment bonus labels** now read `+X% Boss Combat` instead of `+X% Combat` (both individual items and set bonuses)
- **About panel** — both equipment entries updated to explicitly state that combat bonuses only affect boss fights, and that quest combat power is determined solely by adventurers

No game logic changed.

Closes #81

✨ This PR was created with help from Hikari~ 🌸

Reviewed-on: #83
Co-authored-by: Hikari <hikari@nhcarrigan.com>
Co-committed-by: Hikari <hikari@nhcarrigan.com>

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

@@ -69,10 +69,12 @@ const howToPlay = [
   {
     body:
       "Earn equipment from boss drops and quest rewards. Each piece provides"
-      + " bonuses to gold income, click power, or combat. Rarer equipment"
-      + " provides stronger bonuses. Equip matching set pieces (2 or 3 of a"
-      + " named set) to unlock escalating set bonuses shown at the top of the"
-      + " Equipment panel.",
+      + " bonuses to gold income, click power, or boss combat DPS. Rarer"
+      + " equipment provides stronger bonuses. Note: combat bonuses only"
+      + " affect boss fights — quest combat power is determined solely by"
+      + " your adventurers. Equip matching set pieces (2 or 3 of a named set)"
+      + " to unlock escalating set bonuses shown at the top of the Equipment"
+      + " panel.",
     title: "🗡️ Equipment & Sets",
   },
   {
@@ -168,10 +170,12 @@ const howToPlay = [
   {
     body:
       "Defeat bosses to earn equipment drops: weapons, armour, and trinkets."
-      + " Each item provides bonuses to gold income, combat power, or click"
-      + " power. Only one item per slot can be equipped at a time — visit the"
-      + " Equipment panel to manage your loadout. Your currently equipped"
-      + " items are displayed on your character sheet and public profile.",
+      + " Each item provides bonuses to gold income, boss combat DPS, or click"
+      + " power. Combat bonuses only affect boss fights — quest combat power"
+      + " is determined solely by your adventurers. Only one item per slot"
+      + " can be equipped at a time — visit the Equipment panel to manage"
+      + " your loadout. Your currently equipped items are displayed on your"
+      + " character sheet and public profile.",
     title: "🗡️ Equipment",
   },
   {

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

@@ -31,7 +31,7 @@ const bonusDescription = (item: Equipment): string => {
   const parts: Array<string> = [];
   if (item.bonus.combatMultiplier !== undefined) {
     const pct = Math.round((item.bonus.combatMultiplier - 1) * 100);
-    parts.push(`+${String(pct)}% Combat`);
+    parts.push(`+${String(pct)}% Boss Combat`);
   }
   if (item.bonus.goldMultiplier !== undefined) {
     const pct = Math.round((item.bonus.goldMultiplier - 1) * 100);
@@ -276,7 +276,7 @@ const EquipmentPanel = (): JSX.Element => {
         }
         if (bonus.combatMultiplier !== undefined) {
           const pct = Math.round((bonus.combatMultiplier - 1) * 100);
-          parts.push(`+${String(pct)}% Combat (${String(threshold)}pc)`);
+          parts.push(`+${String(pct)}% Boss Combat (${String(threshold)}pc)`);
         }
         if (bonus.clickMultiplier !== undefined) {
           const pct = Math.round((bonus.clickMultiplier - 1) * 100);