[deps] drop tortoise in favour of sqlmodel

src/teilchensammler_cli/main.py

@@ -16,9 +16,6 @@ from textual.widgets import (
     Input,
     Static,
 )
-from tortoise import Tortoise
-
-from teilchensammler_cli import settings
 
 
 @final
@@ -99,14 +96,8 @@ class AddInventoryScreen(Screen[None]):
 @final
 class SammlerApp(App[None]):
     async def on_mount(self) -> None:
-        await Tortoise.init(config=settings.TORTOISE_ORM_CONFIG)
-        await Tortoise.generate_schemas(safe=True)
         _ = self.push_screen(AddInventoryScreen())
 
-    async def on_unmount(self) -> None:
-        # https://tortoise.github.io/setup.html#the-importance-of-cleaning-up
-        await Tortoise.close_connections()
-
 
 def main() -> None:
     app = SammlerApp()