misc: add logs for debugging

Dockerfile

@@ -22,6 +22,16 @@ RUN npm install
 # Copy the entire viewer directory
 COPY --chown=user viewer/ .
 
+# Debug: List all files in the src/components directory
+RUN echo "=== Listing src/components directory ===" && \
+    ls -la src/components && \
+    echo "=== Listing URDFViewer file specifically ===" && \
+    ls -la src/components/URDFViewer* && \
+    echo "=== Current working directory ===" && \
+    pwd && \
+    echo "=== Directory structure ===" && \
+    find . -type f -name "*.tsx" | sort
+
 # Ensure proper file permissions
 RUN chmod -R 755 .