refactor: fix lint warnings and remove stale type: ignore comments

src/porchlight/app.py

@@ -91,7 +91,7 @@ async def lifespan(app: FastAPI) -> AsyncIterator[None]:
 
 def create_app(settings: Settings | None = None) -> FastAPI:
     if settings is None:
-        settings = Settings()  # type: ignore[call-arg]
+        settings = Settings()
 
     app = FastAPI(
         title="Porchlight",

src/porchlight/cli.py

@@ -52,7 +52,7 @@ def create_invite(
     note: Annotated[str | None, typer.Option(help="Optional note stored with the link")] = None,
 ) -> None:
     """Generate a magic link registration URL for a new user."""
-    settings = Settings()  # type: ignore[call-arg]
+    settings = Settings()
     effective_ttl = ttl if ttl is not None else settings.invite_ttl
     url = asyncio.run(_create_invite(settings, username, effective_ttl, note))
     typer.echo(url)
@@ -64,7 +64,7 @@ def initial_admin(
     group: Annotated[list[str] | None, typer.Option(help="Groups to assign (repeatable)")] = None,
 ) -> None:
     """Bootstrap the first admin user with a registration link."""
-    settings = Settings()  # type: ignore[call-arg]
+    settings = Settings()
     groups = group if group is not None else ["admin", "users"]
     url = asyncio.run(_initial_admin(settings, username, groups))
     typer.echo(url)