Implement async db access in admin

packages/sshecret-admin/src/sshecret_admin/frontend/dependencies.py

@@ -1,10 +1,11 @@
 """Frontend dependencies."""
 
 from dataclasses import dataclass
-from collections.abc import Callable, Awaitable
+from collections.abc import AsyncGenerator, Callable, Awaitable
 from typing import Self
 
 from sqlalchemy.orm import Session
+from sqlalchemy.ext.asyncio import AsyncSession
 from jinja2_fragments.fastapi import Jinja2Blocks
 from fastapi import Request
 
@@ -14,6 +15,7 @@ from sshecret_admin.auth.models import User
 
 UserTokenDep = Callable[[Request, Session], Awaitable[User]]
 UserLoginDep = Callable[[Request, Session], Awaitable[bool]]
+AsyncSessionDep = Callable[[], AsyncGenerator[AsyncSession, None]]
 
 
 @dataclass
@@ -25,6 +27,7 @@ class FrontendDependencies(BaseDependencies):
     get_user_from_access_token: UserTokenDep
     get_user_from_refresh_token: UserTokenDep
     get_login_status: UserLoginDep
+    get_async_session: AsyncSessionDep
 
     @classmethod
     def create(
@@ -35,6 +38,7 @@ class FrontendDependencies(BaseDependencies):
         get_user_from_access_token: UserTokenDep,
         get_user_from_refresh_token: UserTokenDep,
         get_login_status: UserLoginDep,
+        get_async_session: AsyncSessionDep
     ) -> Self:
         """Create from base dependencies."""
         return cls(
@@ -45,4 +49,5 @@ class FrontendDependencies(BaseDependencies):
             get_user_from_access_token=get_user_from_access_token,
             get_user_from_refresh_token=get_user_from_refresh_token,
             get_login_status=get_login_status,
+            get_async_session=get_async_session,
         )