refactor: 重构情绪管理器

src/plugins/__init__.py

@@ -6,7 +6,6 @@ MaiMBot插件系统
 from .chat.chat_stream import chat_manager
 from .emoji_system.emoji_manager import emoji_manager
 from .person_info.relationship_manager import relationship_manager
-from .moods.moods import MoodManager
 from .willing.willing_manager import willing_manager
 from .schedule.schedule_generator import bot_schedule
 
@@ -15,7 +14,6 @@ __all__ = [
     "chat_manager",
     "emoji_manager",
     "relationship_manager",
-    "MoodManager",
     "willing_manager",
     "bot_schedule",
 ]