deploy.Dockerfile: default VTK_VERSION=9.6.1 (only published artifact); make prefetch non-fatal

Author: vicentebolea

deploy.Dockerfile

@@ -11,7 +11,7 @@ ENV PIP_DISABLE_PIP_VERSION_CHECK=1 \
     PYTHONUNBUFFERED=1
 
 # VTK version to pre-cache at image build time
-ARG VTK_VERSION=9.3.0
+ARG VTK_VERSION=9.6.1
 ENV VTK_MCP_VTK_VERSION=${VTK_VERSION}
 
 RUN apt-get update && \

scripts/prefetch_artifacts.py

@@ -10,13 +10,18 @@
 
 vtk_version = os.environ["VTK_MCP_VTK_VERSION"]
 
-from vtk_knowledge import VTKAPIIndex
+try:
+    from vtk_knowledge import VTKAPIIndex
 
-VTKAPIIndex.from_artifact(vtk_version)
+    VTKAPIIndex.from_artifact(vtk_version)
+    logging.info("vtk-knowledge artifact cached for %s", vtk_version)
+except Exception as e:
+    logging.warning("vtk-knowledge artifact not cached (will download at runtime): %s", e)
 
 try:
     from vtk_index import Retriever
 
     Retriever.from_artifact(vtk_version)
+    logging.info("vtk-index embedded storage cached for %s", vtk_version)
 except Exception as e:
-    logging.warning("vtk-index embedded storage skipped: %s", e)
+    logging.warning("vtk-index embedded storage not cached (will download at runtime): %s", e)