remove：无用配置，整理配置文件

src/chat/emoji_system/emoji_manager.py

@@ -501,7 +501,7 @@ class EmojiManager:
                 existing_record = session.exec(statement).first()
                 if existing_record:
                     if existing_record.is_registered and _is_available_emoji_record(existing_record):
-                        logger.info(f"[register_emoji] Emoji already registered, skipping: {emoji.file_hash}")
+                        # logger.info(f"[register_emoji] Emoji already registered, skipping: {emoji.file_hash}")
                         return "skipped"
 
                     normalized_description = str(emoji.description or existing_record.description or "").strip()

src/chat/image_system/image_manager.py

@@ -369,7 +369,7 @@ class ImageManager:
             logger.info(f"Cleaned mistaken registration state on {fixed_counter} image records")
 
     async def _generate_image_description(self, image_bytes: bytes, image_format: str) -> str:
-        prompt = global_config.personality.visual_style
+        prompt = global_config.visual.visual_style
         image_base64 = base64.b64encode(image_bytes).decode("utf-8")
 
         generation_result = await vlm.generate_response_for_image(

src/chat/replyer/maisaka_replyer_factory.py

@@ -18,4 +18,4 @@ def get_maisaka_replyer_class() -> Type[object]:
 
 def get_maisaka_replyer_generator_type() -> str:
     """返回当前配置的 Maisaka replyer 生成器类型。"""
-    return global_config.chat.replyer_generator_type
+    return "multimodal" if global_config.visual.multimodal_replyer else "legacy"