diff --git a/.gitignore b/.gitignore
index 67d07e9..0af8f52 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,5 @@ alembic/versions/
 
 .idea
 .codemoss
+
+alembic.ini
diff --git a/src/nyahome/cli/cli_aii.py b/src/nyahome/cli/cli_aii.py
index 99025ba..5ff629e 100644
--- a/src/nyahome/cli/cli_aii.py
+++ b/src/nyahome/cli/cli_aii.py
@@ -96,5 +96,5 @@ def add_model(
         session.add(am)
         session.commit()
         session.refresh(am)
-    
+
     console.print(f"[cyan]已添加模型 [{am.id}][{am.model_name}]({am.aii_provider_id})[/cyan]")
diff --git a/src/nyahome/database/__init__.py b/src/nyahome/database/__init__.py
index 0a8c234..be564d2 100644
--- a/src/nyahome/database/__init__.py
+++ b/src/nyahome/database/__init__.py
@@ -18,7 +18,10 @@ from .session import async_get_session, get_session
 
 # 创建数据库连接和数据库文件
 def create_db() -> None:  # noqa: RUF067
-    SQLModel.metadata.create_all(engine)
+    try:
+        SQLModel.metadata.create_all(engine)
+    except Exception as e:
+        raise RuntimeError(f"连接或创建数据库失败：{e}") from e
 
 
 __all__ = [
diff --git a/src/nyahome/database/model_aii.py b/src/nyahome/database/model_aii.py
index 5a486ea..0515401 100644
--- a/src/nyahome/database/model_aii.py
+++ b/src/nyahome/database/model_aii.py
@@ -1,3 +1,5 @@
+from typing import Optional
+
 from pydantic import BaseModel
 from sqlmodel import Field, Relationship, SQLModel
 
@@ -7,7 +9,7 @@ class AiiProvider(SQLModel, table=True):
     模型提供商。
     """
 
-    id: int | None = Field(default=None, primary_key=True)
+    id: Optional[int] = Field(default=None, primary_key=True)
     name: str
     base_url: str
     api_key: str
@@ -16,7 +18,7 @@ class AiiProvider(SQLModel, table=True):
 
 
 class AiiProviderPublic(BaseModel):
-    id: int | None = None
+    id: Optional[int] = None
     name: str
     base_url: str
     api_key: str
@@ -27,16 +29,18 @@ class AiiModel(SQLModel, table=True):
     模型。
     """
 
-    id: int | None = Field(default=None, primary_key=True)
+    id: Optional[int] = Field(default=None, primary_key=True)
     model_name: str
     max_context_length: int
 
     aii_provider_id: int = Field(default=None, foreign_key="aiiprovider.id")
     aii_provider: AiiProvider = Relationship(back_populates="aii_models")
 
+    chatrooms: list["Chatroom"] = Relationship(back_populates="default_model")
+
 
 class AiiModelPublic(BaseModel):
-    id: int | None = None
+    id: Optional[int] = None
     model_name: str
     max_context_length: int
 
@@ -58,3 +62,6 @@ def z_aii_provider(ap: AiiProvider) -> dict:
         "name": ap.name,
         "base_url": ap.base_url,
     }
+
+
+from .model_story import Chatroom  # noqa: E402
diff --git a/src/nyahome/database/model_story.py b/src/nyahome/database/model_story.py
index 3f17b13..02c5972 100644
--- a/src/nyahome/database/model_story.py
+++ b/src/nyahome/database/model_story.py
@@ -16,33 +16,40 @@ class Chatroom(SQLModel, table=True):
     规定 creator_id 为 0 的聊天室为公共聊天室，其权限由配置文件决定。
     """
 
-    id: int | None = Field(default=None, primary_key=True)
+    id: Optional[int] = Field(default=None, primary_key=True)
     name: str
     description: str
     feature_image: str = Field(
         default=f"{config_manager.get('site_url', 'http://localhost:9000')}/nyahome/normal-thumbnail.png"
     )
-    content: str
-    script: str
+    content: str = Field(description="聊天室中的聊天内容。作为已序列化的 json 格式字符串存储，请参阅数据保存。")
+    script: str = Field(description="聊天室中的世界书内容。作为已序列化的 json 格式字符串存储，请参阅数据保存。")
 
-    script_template_id: int | None = Field(
+    script_template_id: Optional[int] = Field(
         default=None, sa_column=Column(ForeignKey("scripttemplate.id", name="fk_chatroom_script_template"))
     )
-    script_template_version: str | None
+    script_template_version: Optional[str]
     script_template: "ScriptTemplate" = Relationship()
 
     creator_id: int = Field(sa_column=Column(ForeignKey("modeluser.id", name="fk_chatroom_creator")))
-    creator: Optional["ModelUser"] = Relationship(back_populates="chatrooms")
+    creator: "ModelUser" = Relationship(back_populates="chatrooms")
+
+    default_model_id: Optional[int] = Field(
+        sa_column=Column(ForeignKey("aiimodel.id", name="fk_chatroom_default_model"))
+    )
+    default_model: Optional["AiiModel"] = Relationship(back_populates="chatrooms")
 
 
 class ChatroomPublic(BaseModel):
-    id: int | None = None
+    id: Optional[int] = None
     name: str
     description: str
     feature_image: str
 
-    script_template_id: int | None = None
-    script_template_version: str | None
+    script_template_id: Optional[int] = None
+    script_template_version: Optional[str] = None
+
+    default_model_id: Optional[int] = None
 
 
 class ScriptTemplate(SQLModel, table=True):
@@ -104,4 +111,5 @@ class ChatroomChatDelete(BaseModel):
     change: Literal["user", "aii"]
 
 
+from .model_aii import AiiModel  # noqa: E402
 from .model_user import ModelUser  # noqa: E402
diff --git a/src/nyahome/service/chat_service.py b/src/nyahome/service/chat_service.py
index d8aad1b..377842d 100644
--- a/src/nyahome/service/chat_service.py
+++ b/src/nyahome/service/chat_service.py
@@ -126,11 +126,11 @@ async def s_start_async_streaming_chat(
         td = getattr(chuck.choices[0].delta, "reasoning_content", None)
         cd = chuck.choices[0].delta.content
         if td:
-            logger.debug(f"reasoning 流式输出：{cd}")
+            # logger.debug(f"reasoning 流式输出：{cd}")
             aii_thinking += td
             yield f"data: {json.dumps({'text': td, 'type': 'thinking'}, ensure_ascii=False)}\n\n"
         if cd:
-            logger.debug(f"content 流式输出：{cd}")
+            # logger.debug(f"content 流式输出：{cd}")
             aii_message += cd
             yield f"data: {json.dumps({'text': cd, 'type': 'output'}, ensure_ascii=False)}\n\n"
     logger.info(f"AI 完成输出 : {aii_message}")
diff --git a/webui/src/components/chatroom/ChatroomCreatorModal.vue b/webui/src/components/chatroom/ChatroomCreatorModal.vue
index 4100f51..28cd0c2 100644
--- a/webui/src/components/chatroom/ChatroomCreatorModal.vue
+++ b/webui/src/components/chatroom/ChatroomCreatorModal.vue
@@ -65,15 +65,6 @@ function onSubmit() {
         <n-button secondary type="primary" @click="onSubmit()">确认！</n-button>
       </n-form-item>
     </n-form>
-
-    <select-file-modal
-      :max="1"
-      :extensions="['png', 'jpeg', 'jpg']"
-      :load-files="loadFiles"
-      v-model:show-modal="showSelectModal"
-      v-model:select-files="selectFiles"
-    />
-    <upload-file-modal v-model:show-modal="showUploadModal" :after-leave="loadFiles" />
   </n-modal>
 </template>