Add command error handling.

Author: swyrin

nameless/nameless.py

@@ -3,7 +3,7 @@
 import re
 from datetime import datetime, timezone
 from pathlib import Path
-from typing import override
+from typing import Self, override
 
 import discord
 from discord import ActivityType, Permissions
@@ -63,6 +63,16 @@ async def on_ready(self):
         logging.info("nameless* is now operational!")
         nameless_config["nameless"]["start_time"] = datetime.now(timezone.utc)
 
+    @override
+    async def on_command_error(
+        self, ctx: commands.Context[Self], ex: commands.errors.CommandError
+    ):
+        await ctx.send(
+            "Something went wrong during command execution, "
+            + "please notify us on GitHub issue if needed."
+        )
+        logging.error("Something went wrong.", exc_info=ex)
+
     def start_bot(self, *, is_debug: bool = False):
         """Start the bot."""
         logging.info(