nx_tsv_migrate.nx

nx_tsv_migrate.nx -- retire a flat .tsv/.conf/.list registry file into the NATIVE sovereign seg-store plane (operator 2026-07-20: "get rid of all these tsvs and migrate to native nishi information management"; this is the standing 07-18 law "no tsv -- nishi formats" made MECHANICAL). The ecosystem already owns the primitive (sts_seed = flat buffer -> ONE plane commit) but every caller inlines it, so there was no way to migrate an EXISTING file without writing a bespoke organ each time. This is that missing reusable tool -- one call per file, so the ~150-file legacy population can be retired lane by lane instead of hand-ported. nx_tsv_migrate <srcfile> <plane-prefix> e.g. knowledge/registry/x.tsv knowledge/store/x- DATA-LOSSLESS + EXPLICIT ABOUT THE REST: every data row is carried verbatim. `#` comment lines are NOT carried, because the native store's own seeder (sts_seed) drops them BY DESIGN -- a plane holds rows, and provenance belongs in the emitting organ's envelope. That drop is COUNTED and REPORTED (comments_dropped), never silent, so an owner migrating a heavily-commented file knows to re-home the prose before retiring the source. VERIFIED BY ROUND-TRIP: after the commit it reads the plane back through the real sts_load and compares the data-row count; a mismatch is a LOUD nonzero exit, never a silent partial migration. Non-destructive: the source is NEVER touched -- retiring it stays a separate reversible decision (.superseded-by-sovereign-store). license_tier: ORIGINAL expect_exit: 0