feat: Refactored all cogs implementation

cogs/roulette.py

@@ -5,11 +5,12 @@ import random
 import discord
 from discord import option
 from discord.ext import commands
+from cogs import FeatureCog
 
 
-class RouletteCog(commands.Cog):
+class RouletteCog(FeatureCog):
     def __init__(self, bot: discord.Bot):
-        self.bot = bot
+        super().__init__(bot, feature_name="roulette")
         self.cooldown = 60 * 3
         self.active_games = {}
 
@@ -155,6 +156,10 @@ class RouletteCog(commands.Cog):
         ctx: discord.ApplicationContext,
         target: discord.Member,
     ):
+        # ensure feature enabled for this guild
+        if not ctx.guild or not self.is_enabled(ctx.guild.id):
+            await ctx.respond("Roulette feature is disabled for this guild.", ephemeral=True)
+            return
         author = ctx.author
         self_test = author.id == target.id