Add a non-interrupting P14D boundary timer on the Beoordelen user task that fires
an external-worker task (BeoordelingEscaleren) to the escalation end; wire the
hosted BeoordelingEscalatiePump and register the escalation client/processor in DI.
On timeout the still-open beoordeling is reassigned to teamlead (ADR-0015).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>