做了文件结构的调整，新建了service文件夹存放内部服务。添加了git ignore

models/__init__.py

@@ -1,4 +1,3 @@
 from .user import User
-from .database import init_db
 
-__all__ = ["User", "init_db"]
+__all__ = ["User"]

models/database.py

@@ -1,26 +0,0 @@
-from sqlalchemy.ext.asyncio import AsyncEngine
-from .user import Base, User, UserRole
-from sqlalchemy import select
-from config import SYSTEM_ADMIN_CONFIG
-from service.auth import get_password_hash
-
-async def init_db(engine: AsyncEngine):
-    """Initialize database"""
-    async with engine.begin() as conn:
-        # Create all tables
-        await conn.run_sync(Base.metadata.create_all)
-
-        # Check if system admin exists
-        result = await conn.execute(
-            select(User).where(User.role == UserRole.SYSTEM_ADMIN)
-        )
-        if not result.scalars().first():
-            # Create default system admin
-            admin = User(
-                username=SYSTEM_ADMIN_CONFIG['username'],
-                password=get_password_hash(SYSTEM_ADMIN_CONFIG['password']),
-                role=UserRole.SYSTEM_ADMIN,
-                description=SYSTEM_ADMIN_CONFIG['description']
-            )
-            conn.add(admin)
-            await conn.commit()