refactor: strip WP-/RB- ticket refs from apps and libs (RD-18)

204 WP-NN/RB-NN comments named a closed ticket instead of the code they
sit next to. git blame already records history and stays correct when
code moves; the comment does not. This sweep removes the reference and
keeps the sentence, across 95 files in apps/ and libs/ plus the
behaviour-spec generator's header text.

Eleven references stay: five story files justify an a11y disable per
the README's rule, and one line in a11y.mdx documents that convention.
Two sentences needed a rewrite, not a deletion, so the reference's
meaning survives its removal. behaviour-spec.mdx is regenerated, not
hand-edited.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/behandelportal/src/app/behandeling/domain/beoordeling-view.ts

@@ -2,8 +2,8 @@ import { formatDatumNl } from '@shared/kernel/datum';
 import { AanvraagType } from './werkvoorraad-item';
 import { BeoordelingStatus, BeoordelingView } from './beoordeling';
 
-/** View-model mapping shared by the werkvoorraad list (WP-64) and the beoordeling
-    detail screen (WP-65): type/status → labels. Pure, no Angular. Lives here (not in
+/** View-model mapping shared by the werkvoorraad list and the beoordeling
+    detail screen: type/status → labels. Pure, no Angular. Lives here (not in
     `werkvoorraad-item-view.ts`) because `BeoordelingStatus` is the wider of the two
     status unions — `werkvoorraad-item-view.ts` re-exports these for its own use. */