fix: strip only the first '!' character instead of all of them

- Changed from message.content[1:].lstrip('!') to message.content[1:]
- lstrip('!') removes ALL leading '!' characters, so '!ping' becomes 'ping' (correct)
  but '!ping ' becomes ' ping' (with a leading space, breaking command parsing)
- Now only the first '!' is stripped, preserving spaces and subsequent characters

main.py

@@ -209,13 +209,11 @@ async def on_message(message: discord.Message) -> None:
     if message.guild is None:
         return
 
-    # Check if the message is a command
+    # Check if the message starts with the command prefix (exactly one !)
     if message.content.startswith("!."):
-        # Strip the leading "!" and process
+        # Strip ONLY the first "!" character (not all of them)
         content = message.content[1:]
-        # Remove the leading "!" again since we stripped one
-        content = content.lstrip("!")
-        # FIX: Await process_commands to actually process the command
+        # Now process the command
         await bot.process_commands(message)