REBUILD.md: voyager 2's final numbers for group sets and albums (LOG 112)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

database/migrations/1770000006000_voyager3_catalog.ts

@@ -7,7 +7,7 @@ import env from '#start/env'
  * inspections, candidates, par2 data, file hashes, verdicts, merges, rule counts and samples; what survives:
  * groups, ranges, the corpus, probe_cache, spots, nntp_shares, nodes, users), so it refuses to run on a catalog
  * with releases unless VOYAGER3_RESET=1 (the user's go-ahead; resets are paused since 2026-10-12). Then:
- * - posters get an id; group_sets holds each distinct group combination once (~2,600); releases is created anew
+ * - posters get an id; group_sets holds each distinct group combination once (~140k); releases is created anew
  *   without its text copies (poster_id, group_set_id, the keys as 20-byte bytea, source a smallint), 8-byte
  *   columns first, with `edge` (still open at its block's end, for the block merger) and settled_at as the finish
  *   (null: a tail release still provisional). The category and judge triggers follow the new columns;