Per fox 2026-05-10 — file not needed. Was a point-in-time update
note; superseded by the rolling research log in #000006 and the
ticket-level status pins (#000028 closed in TICKETS.md, witness-
sweep amend in #000006 etc.).
No incoming references in the repo (grep clean).
Note for the record: the immediately-prior commit (1421d96) made
an internal-consistency fix to this same file. That fix is moot
post-deletion but stays in the audit chain — describing the
witness/carrier vocabulary distinction was useful at the time it
shipped.
russell@unturf.com
d720b73d91