Drives the behandel-portal frontend: the werkbak lists registrations awaiting beoordeling, a decision (goedkeuren/afwijzen) posts to the BFF and refreshes, an empty werkbak and a load failure are surfaced, the page is WCAG 2.1 AA clean, and the medewerker token attaches to the relative /behandel/ calls (and not to the anonymous openbaar register). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>