Update dockerfile to fix data write permissions error

Dockerfile

@@ -1,3 +1,15 @@
+# Temporarily switch to root to bypass HF permission boundaries
+USER root
+
+# Pre-create the target directory inside the volume path
+RUN mkdir -p /data
+
+# Open full read/write/execute permissions on the target directory
+RUN chmod -R 777 /data
+
+# Switch back to the required non-root Label Studio user context
+USER 1001
+
 FROM heartexlabs/label-studio:hf-latest
 
 ################################################################################