- Remove the deprecated `meridian spawn files` stub (`_spawn_files_deprecated` in
  `spawn.py`) in the minor release after the one that deprecated it. It never
  listed files; it stays one minor so scripts piping it to `xargs git add` keep
  working while they're updated.
- Meet session browse's <200 ms warm-start target. Phase A's seven-run medians
  are 500 ms / ~81 MB for both fresh and managed environments (50 stable rows;
  749 and 309 scoped records respectively). Handler imports and indexed work
  lookup remove the original eager operation registry/journal-fold costs, but
  universal CLI imports and SQLAlchemy-backed index loading still dominate.
  Keep one command registration/read path; do not add a parallel fast CLI loader.
- Remove `session browse --include-archives` (deprecated, no effect: `/` searches what
  the Status view shows) in the minor release after the one that deprecated it.
