fix

src/materia/cli.py

@@ -91,7 +91,7 @@ def pipeline_run(
 
     if result.success:
         typer.echo(result.output)
-        typer.echo(f"\n✓ Pipeline completed successfully")
+        typer.echo("\n✓ Pipeline completed successfully")
     else:
         typer.echo(result.error, err=True)
         raise typer.Exit(1)

tests/conftest.py

@@ -1,6 +1,5 @@
 """Pytest configuration and fixtures."""
 
-import os
 import pytest
 from unittest.mock import Mock, patch