revert: drop smartsheet backfill script from deploy

The script kept failing on deploy (ESM vs CJS issue, plus the
script file wasn't being shipped). User decided not to worry
about it. The 26 manual rows will remain in the sheet without
Entry IDs; the cron will retry them with a manual cleanup
of any duplicates if needed.

package.json

@@ -11,7 +11,6 @@
     "migrate": "node scripts/migrate.js",
     "migrate:one": "node scripts/migrate.js",
     "db:migrate": "node scripts/migrate.js",
-    "smartsheet:backfill-entry-ids": "node scripts/smartsheet-backfill-entry-ids.mjs",
     "db:seed": "tsx db/seed.ts",
     "db:seed:tour": "node scripts/seed-tuxedo-2026.js",
     "db:reset": "node scripts/db-reset.js",