feat: Require group prefix for hybrid commands

Added a _require_group_prefix check to all hybrid commands in each cog to ensure commands are only executed when invoked with the appropriate group prefix. Also updated error handling in bot.py to silently ignore CheckFailure errors. This improves command organization and prevents accidental command execution outside their intended context.

cogs/fun/__init__.py

@@ -31,6 +31,16 @@ class Fun(commands.GroupCog, name="fun"):
         else:
             await context.send(f"Unknown fun command: {name}")
 
+    def _require_group_prefix(context: Context) -> bool:
+        if getattr(context, "interaction", None):
+            return True
+        group = getattr(getattr(context, "cog", None), "qualified_name", "").lower()
+        if not group:
+            return True
+        prefix = context.prefix or ""
+        content = context.message.content.strip().lower()
+        return content.startswith(f"{prefix}{group} ")
+
     @fun_group.command(name="coinflip")
     async def fun_group_coinflip(self, context: Context):
         await self._invoke_hybrid(context, "coinflip")
@@ -51,6 +61,7 @@ class Fun(commands.GroupCog, name="fun"):
     async def fun_group_rps(self, context: Context):
         await self._invoke_hybrid(context, "rps")
 
+    @commands.check(_require_group_prefix)
     @commands.hybrid_command(
         name="coinflip",
         description="Make a coin flip, but give your bet before."
@@ -58,6 +69,7 @@ class Fun(commands.GroupCog, name="fun"):
     async def coinflip(self, context):
         return await coinflip_command()(self, context)
 
+    @commands.check(_require_group_prefix)
     @commands.hybrid_command(
         name="8ball",
         description="Ask any question to the bot.",
@@ -65,6 +77,7 @@ class Fun(commands.GroupCog, name="fun"):
     async def eight_ball(self, context, *, question: str):
         return await eightball_command()(self, context, question=question)
 
+    @commands.check(_require_group_prefix)
     @commands.hybrid_command(
         name="minesweeper", 
         description="Play a buttoned minesweeper mini-game."
@@ -72,10 +85,12 @@ class Fun(commands.GroupCog, name="fun"):
     async def minesweeper(self, context):
         return await minesweeper_command()(self, context)
 
+    @commands.check(_require_group_prefix)
     @commands.hybrid_command(name="randomfact", description="Get a random fact.")
     async def randomfact(self, context):
         return await randomfact_command()(self, context)
 
+    @commands.check(_require_group_prefix)
     @commands.hybrid_command(
         name="rps", description="Play the rock paper scissors game against the bot."
     )