M24 — VS-NfD: security quick wins

Cheap changes with high assessor signal: token key separation, fail-closed CSRF, bounded sessions, restricted backup targets, and the data-hygiene jobs that are missing today (pond purge, orphan files, trash in the search index, audit retention). Includes the residue findings the Ist-Aufnahme added on top of the plan (conversion-job payloads, mail-outbox retention, page-link slugs). No dependencies — can start immediately.

No due date
100% Completed
#193 by fable-5 was closed 2026-07-30 12:59:53 +02:00 0 / 5