fix: skip Modal integration tests when package not installed

The test was only checking for Modal credentials but not whether
the modal package itself was installed, causing test failures in
environments without the optional dependency.

tests/integration/test_modal.py

@@ -1,4 +1,4 @@
-"""Integration tests for Modal (requires credentials)."""
+"""Integration tests for Modal (requires credentials and modal package)."""
 
 import pytest
 
@@ -7,9 +7,18 @@ from src.utils.config import settings
 # Check if any LLM API key is available
 _llm_available = bool(settings.openai_api_key or settings.anthropic_api_key)
 
+# Check if modal package is installed
+try:
+    import modal  # noqa: F401
+
+    _modal_installed = True
+except ImportError:
+    _modal_installed = False
+
 
 @pytest.mark.integration
-@pytest.mark.skipif(not settings.modal_available, reason="Modal not configured")
+@pytest.mark.skipif(not _modal_installed, reason="Modal package not installed")
+@pytest.mark.skipif(not settings.modal_available, reason="Modal credentials not configured")
 class TestModalIntegration:
     """Integration tests requiring Modal credentials."""