Lower mute thresholds and order warnings before chat replies

- spike_mute: 0.8→0.7, mute: 0.75→0.65 so escalating users get
  timed out after a warning instead of endlessly warned
- Skip debounce on @mentions so sentiment analysis fires immediately
- Chat cog awaits pending sentiment analysis before replying,
  ensuring warnings/mutes appear before the personality response

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

cogs/chat.py

@@ -1,3 +1,4 @@
+import asyncio
 import logging
 from collections import deque
 from pathlib import Path
@@ -125,6 +126,18 @@ class ChatCog(commands.Cog):
                 {"role": "assistant", "content": response}
             )
 
+        # Wait for any pending sentiment analysis to finish first so
+        # warnings/mutes appear before the chat reply
+        sentiment_cog = self.bot.get_cog("SentimentCog")
+        if sentiment_cog:
+            key = (message.channel.id, message.author.id)
+            task = sentiment_cog._debounce_tasks.get(key)
+            if task and not task.done():
+                try:
+                    await asyncio.wait_for(asyncio.shield(task), timeout=15)
+                except (asyncio.TimeoutError, asyncio.CancelledError):
+                    pass
+
         await message.reply(response, mention_author=False)
         logger.info(
             "Chat reply in #%s to %s: %s",