Enhance web interface and item system with user experience improvements

- Fix \!team command to redirect to team builder web page instead of showing IRC list
- Add usage commands to inventory items showing "\!use <item name>" for each item
- Implement Coin Pouch treasure item with 1-3 coin rewards (rare drop rate)
- Fix gym badges leaderboard database query with proper COALESCE and CASE syntax
- Improve inventory item display with styled command instructions and monospace code blocks

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

modules/inventory.py

@@ -99,6 +99,22 @@ class Inventory(BaseModule):
             self.send_message(channel, 
                 f"🍀 {nickname}: Used {item['name']}! Rare pet encounter rate increased by {effect_value}% for 1 hour!")
         
+        elif effect == "money":
+            # Handle money items (like Coin Pouch)
+            import random
+            if "-" in str(effect_value):
+                # Parse range like "1-3"
+                min_coins, max_coins = map(int, str(effect_value).split("-"))
+                coins_gained = random.randint(min_coins, max_coins)
+            else:
+                coins_gained = int(effect_value)
+            
+            # Add money to player
+            await self.database.add_money(player["id"], coins_gained)
+            
+            self.send_message(channel, 
+                f"💰 {nickname}: Used {item['name']}! Found {coins_gained} coins inside!")
+        
         elif effect == "none":
             self.send_message(channel, 
                 f"📦 {nickname}: Used {item['name']}! This item has no immediate effect but may be useful later.")