Operational scripts only (no service code, no tests).
- backend/scripts/mvum_backfill.py: cleaned, repo-ready version of the P2/P3 NFS-centerline
backfill. argparse --db-path (default /mnt/nav/navi.db) / --nfs-gdb (default the EDW
Trans_Trail_NFS_Publish.gdb) / --dry-run; no /tmp, no test-DB paths, no prod-refusing
guard (intended for prod, gated by --dry-run + the README snapshot step). Extracts NFS
geometry from the .gdb via ogr2ogr into a cache beside it (no GDAL Python bindings here),
matches null mvum_trails rows by TRAIL_NO+TRAIL_NAME within the forest ADMIN_ORG prefix,
merges segments, writes WKB. Idempotent (UPDATE WHERE shape IS NULL). Prints
rows_attempted/rows_updated/rows_skipped_no_match/rows_skipped_nfs_null_geom.
- backend/scripts/README-mvum-ingest.md: source URLs, initial ingest (ogr2ogr shapes),
refresh, repair (the NULL-shape gap), snapshot-first + stop-service guardrails, and the
produce-vs-consume pointer to mvum.py / mvum_annotate.py / mvum_exclude.py.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
