nx_tsvdrain.nx

nx_tsvdrain.nx -- DRAIN THE TSV LANE: migrate every UNCONSUMED .tsv into a sovereign plane, then retire the third-party file, reversibly. Composes nx_tsvcensus's partition with the two proven organs. WHY: nx_tsvcensus named 44 unconsumed .tsv files across the two knowledge trees. Doing them by hand is two tool calls plus a verification each -- the same tooling gap that made the census itself look "too slow", and a tooling gap is never a licence to sample a subset and call the lane drained. MIGRATE-THEN-RETIRE IS THE ORDER, AND IT IS NOT COSMETIC. Retiring alone would discard measured rows; migrating alone would leave the third-party format in the tree. Evidence files are NOT a special case for the ACTION -- every row survives as sovereign data -- they are only a reason never to retire WITHOUT migrating first. FAIL-SAFE BY CONSTRUCTION (rule 26 / the destructive-heuristic law): - DRY IS THE DEFAULT. Passing nothing prints the plan and changes nothing. Only the literal verb `apply` acts, so a mistyped argument does nothing rather than something. - A file is retired ONLY IF its migrate printed TSV-MIGRATE GREEN *and* verified=1. Any other outcome leaves the source exactly where it is and is counted as SKIPPED, never as done. - Retirement goes through nx_retire_path, which renames and never deletes. - If the census cannot prove coverage, NOTHING is planned and NOTHING is applied. usage: nx_tsvdrain <tsv-root> <src-root> <ext> [apply] exit 0 OK | 1 SOME-SKIPPED | 3 UNPROVEN (partial coverage -- no plan issued) | 2 usage license_tier: ORIGINAL Writes only via nx_tsv_migrate (additive) and nx_retire_path (rename). Rule 26.