Add immutable revisions, PGVN editor, asset replacement, merge and rebase workflows, authenticated media delivery and reachability GC. Harden the script interpreter, pin unrpyc and remove tracked build metadata. Include current compatibility checks, Naninovel import and regression tests.
Admin/uploader pastes a thread link and presses "Подтянуть" on the new
game and edit forms; the backend reads the public first post (no login).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>