- Add anzeige_datum DATE column to jobangebote (with ALTER TABLE migration for pre-existing tables) — the original posting date supplied by the third party - Accept anzeige_datum in POST /api/v1/joboffers (create + upsert) and document it in the OpenAPI spec - Render both on /jobangebote: "Anzeige: <anzeige_datum>" and "Einspielung: <created_at>" Co-Authored-By: Claude <noreply@anthropic.com>