[models] make it so tortoise runs inside textual's async loop thing

src/teilchensammler_cli/__init__.py

@@ -2,7 +2,7 @@
 This file exists so the directory becomes a package.
 """
 
-from .main import main
+from teilchensammler_cli.main import main
 
 if __name__ == "__main__":
     main()

src/teilchensammler_cli/main.py

@@ -16,6 +16,8 @@ from textual.widgets import (
     Input,
     Static,
 )
+from tortoise import Tortoise, fields
+from tortoise.models import Model
 
 
 @final
@@ -98,6 +100,10 @@ class AddInventoryScreen(Screen[None]):
 @final
 class SammlerApp(App[None]):
     async def on_mount(self) -> None:
+        await Tortoise.init(
+            db_url="sqlite://db.sqlite3", modules={"models": ["teilchensammler_cli"]}
+        )
+        await Tortoise.generate_schemas()
         _ = self.push_screen(AddInventoryScreen())