Refactor: remove unused cogs and services, simplify architecture

- Remove admin.py and search.py cogs
- Remove searxng.py service and rate_limiter.py utility
- Update bot.py, ai_chat.py, config.py, and ai_service.py
- Update documentation and docker-compose.yml

src/daemon_boyfriend/bot.py

@@ -12,7 +12,7 @@ logger = logging.getLogger(__name__)
 
 
 class DaemonBoyfriend(commands.Bot):
-    """The main bot class for Daemon Boyfriend."""
+    """The main bot class."""
 
     def __init__(self) -> None:
         intents = discord.Intents.default()
@@ -21,13 +21,13 @@ class DaemonBoyfriend(commands.Bot):
         intents.members = True
 
         super().__init__(
-            command_prefix=settings.command_prefix,
+            command_prefix="!",  # Required but not used
             intents=intents,
-            help_command=None,  # We use slash commands instead
+            help_command=None,
         )
 
     async def setup_hook(self) -> None:
-        """Load cogs and sync commands on startup."""
+        """Load cogs on startup."""
         # Load all cogs
         cogs_path = Path(__file__).parent / "cogs"
         for cog_file in cogs_path.glob("*.py"):
@@ -40,18 +40,6 @@ class DaemonBoyfriend(commands.Bot):
             except Exception as e:
                 logger.error(f"Failed to load cog {cog_name}: {e}")
 
-        # Sync slash commands
-        if settings.discord_guild_id:
-            # Sync to specific guild for faster testing (instant)
-            guild = discord.Object(id=settings.discord_guild_id)
-            self.tree.copy_global_to(guild=guild)
-            await self.tree.sync(guild=guild)
-            logger.info(f"Synced commands to guild {settings.discord_guild_id}")
-        else:
-            # Global sync (can take up to 1 hour to propagate)
-            await self.tree.sync()
-            logger.info("Synced commands globally")
-
     async def on_ready(self) -> None:
         """Called when the bot is ready."""
         if self.user is None:
@@ -59,31 +47,11 @@ class DaemonBoyfriend(commands.Bot):
 
         logger.info(f"Logged in as {self.user} (ID: {self.user.id})")
         logger.info(f"Connected to {len(self.guilds)} guild(s)")
+        logger.info(f"Bot name: {settings.bot_name}")
 
-        # Set activity status
+        # Set activity status from config
         activity = discord.Activity(
             type=discord.ActivityType.watching,
-            name="over the MSC group",
+            name=settings.bot_status,
         )
         await self.change_presence(activity=activity)
-
-    async def on_command_error(
-        self,
-        ctx: commands.Context,
-        error: commands.CommandError,  # type: ignore[type-arg]
-    ) -> None:
-        """Global error handler for prefix commands."""
-        if isinstance(error, commands.CommandNotFound):
-            return  # Ignore unknown commands
-
-        if isinstance(error, commands.MissingPermissions):
-            await ctx.send("You don't have permission to use this command.")
-            return
-
-        if isinstance(error, commands.CommandOnCooldown):
-            await ctx.send(f"Command on cooldown. Try again in {error.retry_after:.1f}s")
-            return
-
-        # Log unexpected errors
-        logger.error(f"Command error: {error}", exc_info=error)
-        await ctx.send("An unexpected error occurred.")