Generate and run Virtuoso isql bulk-load scripts for RDF directories. Takes a source folder plus optional graph IRI, file pattern/formats, and load mode (directory-wide via ld_dir + rdf_loader_run, or per-file named graphs via TTLP_MT with an auto prefix preamble), and emits a ready-to-run .sql. Use when bulk-loading RDF files from a folder into a Virtuoso quad store via isql, regenerating loader scripts after store changes, or simplifying repeated folder loads.
