feat: add prestige system and skill upgrades with comprehensive documentation

src/components/game/tabs/EquipmentTab.tsx

@@ -9,6 +9,7 @@ import {
   type EquipmentType,
 } from '@/lib/game/data/equipment';
 import { ENCHANTMENT_EFFECTS } from '@/lib/game/data/enchantment-effects';
+import { getUnifiedEffects } from '@/lib/game/effects';
 import { fmt } from '@/lib/game/store';
 import { Button } from '@/components/ui/button';
 import { GameCard } from '@/components/ui/game-card';
@@ -513,7 +514,7 @@ showToast('success', 'Item Unequipped', `${instance?.name || 'Item'} removed fro
           </div>
         </div>
 
-        {/* Enchantment Power (placeholder for Task 5) */}
+        {/* Enchantment Power */}
         <GameCard className="mt-4">
           <div className="pb-2">
             <h3 className="text-sm font-semibold text-[var(--text-primary)] flex items-center gap-2">
@@ -521,14 +522,22 @@ showToast('success', 'Item Unequipped', `${instance?.name || 'Item'} removed fro
             </h3>
           </div>
           <div>
-            <StatRow 
-              label="Enchantment Power:"
-              value="1.0×"
-              highlight="info"
-            />
-            <p className="text-xs text-[var(--text-muted)] mt-2">
-              Increases the power of all enchantments. Will be wired from Task 5 implementation.
-            </p>
+            {(() => {
+              const unifiedEffects = getUnifiedEffects(store);
+              const enchantPower = unifiedEffects.enchantmentPowerMultiplier || 1;
+              return (
+                <>
+                  <StatRow 
+                    label="Enchantment Power:"
+                    value={`${enchantPower.toFixed(2)}×`}
+                    highlight={enchantPower > 1 ? "success" : "default"}
+                  />
+                  <p className="text-xs text-[var(--text-muted)] mt-2">
+                    Increases the power of all enchantments by {(enchantPower - 1) * 100}%. Multiplier applied to all enchantment effects.
+                  </p>
+                </>
+              );
+            })()}
           </div>
         </GameCard>