Add debug logging to silent exception handlers

- Import logging module and create logger for admin cog
- Add debug logging when DM to kicked user fails (discord.Forbidden)
- Add debug logging when DM to banned user fails (discord.Forbidden)
- Improve troubleshooting capability without cluttering normal logs

These logs will only appear when logging level is set to DEBUG,
allowing administrators to diagnose DM delivery issues during
moderation actions.

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

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

Author: claude

cogs/admin.py

@@ -9,10 +9,13 @@
 from discord.ext import commands
 from typing import TYPE_CHECKING, Optional, Literal
 from datetime import timedelta
+import logging
 
 from helpers.colors import MAIN_EMBED_COLOR, ERROR_EMBED_COLOR, SUCCESS_EMBED_COLOR
 from helpers.ui import ConfirmationView
 
+logger = logging.getLogger(__name__)
+
 if TYPE_CHECKING:
     from core.bot import RickBot
 
@@ -149,7 +152,9 @@ async def kick(self, interaction: discord.Interaction, member: discord.Member):
                 )
                 await member.send(embed=dm_embed)
             except discord.Forbidden:
-                pass  # Can't DM user
+                logger.debug(
+                    f"Could not DM {member} ({member.id}) about kick - DMs disabled or blocked"
+                )
 
             # Kick the member
             await member.kick(reason=f"{interaction.user} | {reason}")
@@ -296,7 +301,9 @@ async def ban(
                     )
                     await target.send(embed=dm_embed)
                 except discord.Forbidden:
-                    pass  # Can't DM user
+                    logger.debug(
+                        f"Could not DM {target} ({target.id}) about ban - DMs disabled or blocked"
+                    )
 
             # Ban the user
             await interaction.guild.ban(