v0.9.54

Changelog

• 37fc52d tests: Record the v0.9.53 launcher pin
• 3f2df92 docs: Reconcile shipped Phase 2 status in server and webui specs
• 496eaab docs: Specify prerelease names and verbatim launcher pins
• 8621634 releases: Support named prereleases and stable finalization
• 55d9292 docs: Align the prerelease plan table for terminal readers
• 377766c docs: Reconcile current specs and retire stale guidance
• 5bc03cf docs: Bound the repository UI to starting the first build
• 66a3bf4 webui: Let operators start the first repository build

Release notes

• Open a registered repository in the web UI, enter a Git ref, and select Start build
  to build every module at that ref. Refresh shows actual build and module status,
  errors, and published image information when available.
• For SemVer repositories, create trial releases with explicit names such as
  platform release v0.9.54-alpha.1; default/--patch finalizes the latest prerelease
  at the same version core.
• Launchers generated by platform init retain the generating binary's complete version,
  including prerelease suffixes.

🤖 Drafted by Codex on chakrit's behalf.