Upgrade to 1.0.0-rc437

Concerns: pushword/flat

Breaking Change

DeferredExportProcessor no longer runs a background export process directly. Instead, it writes a pending flag file and dispatches a Symfony Messenger message with a 30-second delay for debouncing.

Action required: A Messenger worker must be running to process deferred exports:

php bin/console messenger:consume async -v

New Feature

New auto_git_commit config option (default: false). When enabled, exports automatically commit and push content changes to git.

flat:
  auto_git_commit: true