Restructures the flat repo into one folder per session, with a top-level
README.md (the "about sessions" page, also rendered at /docs/sessions/about
by rfc-app v0.19.0+) and a sessions.json title manifest keyed by 4-digit
NNNN. Filenames inside each folder retain the full SESSION-NNNN.M-TRANSCRIPT-…
form (no trim of the SESSION- prefix). Legacy letter-form transcripts, if
any are still at the root, are not moved — the folder convention applies
to the numeric form only.
Session 0017.0; see SESSION-PROTOCOL.md §1 amendment for the binding shape.
Ben Stull