Fix import path in config.py to support both package and script execution

Use try/except to handle both import contexts:
- Try relative import first (for package imports like in E2E tests)
- Fall back to direct import (for scripts run from within blender_blocking/)

This fixes the ModuleNotFoundError that was preventing E2E tests
from running in CI/CD.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: zbuc

blender_blocking/config.py

@@ -5,7 +5,12 @@
 from dataclasses import dataclass, field
 from typing import Dict, Optional, Tuple
 
-from utils.blender_version import get_eevee_engine_name
+try:
+    # Try relative import first (for package imports)
+    from .utils.blender_version import get_eevee_engine_name
+except ImportError:
+    # Fall back to direct import (for direct script execution)
+    from utils.blender_version import get_eevee_engine_name
 
 
 _VALID_RECON_MODES = {"legacy", "loft_profile", "silhouette_intersection"}