fix(P2): 5 priority-2 bug fixes — emoji consolidation, DM safety, pause gap

#10  Redundant coin flip in join_conversation — removed the 50% random
     gate that doubled the V2 engine's own decision to act.

#11  Message-triggered actions skip _autonomous_paused — _check_and_act
     and _check_and_react now bail out immediately when the autonomous
     system is paused (voice session), matching the scheduled-tick path.

#12  Duplicate emoji dictionaries — removed MOOD_EMOJIS and
     EVIL_MOOD_EMOJIS from globals.py (had different emojis from moods.py).
     bipolar_mode.py and evil_mode.py now import the canonical dicts
     from utils/moods.py so all code sees the same emojis.

#13  DM mood can spontaneously become 'asleep' — rotate_dm_mood() now
     filters 'asleep' out of the candidate list since DMs have no
     sleepy-to-asleep transition guard and no wakeup timer.

#15  Engage-user fallback misreports action type — log level raised to
     WARNING with an explicit [engage_user->general] prefix so the
     cooldown-triggered fallback is visible in logs.

bot/globals.py

@@ -69,35 +69,15 @@ EVIL_MODE = False
 EVIL_DM_MOOD = "evil_neutral"
 EVIL_DM_MOOD_DESCRIPTION = "Evil Miku is calculating and cold."
 EVIL_AVAILABLE_MOODS = ["aggressive", "cunning", "sarcastic", "evil_neutral"]
-EVIL_MOOD_EMOJIS = {
-    "aggressive": "👿",
-    "cunning": "🐍",
-    "sarcastic": "😈",
-    "evil_neutral": ""
-}
+# EVIL_MOOD_EMOJIS removed — canonical source is utils/moods.py
 
 # Bipolar Mode System (both Mikus can argue via webhooks)
 BIPOLAR_MODE = False
 BIPOLAR_WEBHOOKS = {}  # guild_id -> {"miku_webhook_url": str, "evil_webhook_url": str}
 BIPOLAR_ARGUMENT_IN_PROGRESS = {}  # channel_id -> {"active": bool, "exchange_count": int, "current_speaker": str}
 
-# Regular Miku mood emojis (used in bipolar mode for webhook display names)
-MOOD_EMOJIS = {
-    "bubbly": "✨",
-    "sleepy": "💤",
-    "curious": "🔍",
-    "shy": "🥺",
-    "serious": "😐",
-    "excited": "🎉",
-    "silly": "🤪",
-    "melancholy": "💙",
-    "flirty": "💕",
-    "romantic": "💖",
-    "irritated": "😤",
-    "angry": "😠",
-    "neutral": "",
-    "asleep": "😴"
-}
+# MOOD_EMOJIS removed — canonical source is utils/moods.py
+# bipolar_mode.py now imports from there directly
 
 BOT_USER = None