v1.30.0

Added

• Bulk delete on the Posts, Pages, and Attachments admin list
  pages. Operator enters an explicit Select mode, picks rows,
  confirms in a modal. Best-effort partial-failure: deletable
  rows go, guarded rows (pages with children today) are reported
  as skipped. Audit rows distinguish single vs bulk via
  extra.via.

Changed

• Post and Page single-delete cache-purge hook now fires after
  commit instead of before, so subscribers observe a settled
  database state. Behaviour change is invisible to operators.
• Attachments admin list joins the htmx convention with an
  #attachments-list-table partial; the single-delete route
  continues to function unchanged.