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/ssp/src/app/registratie/domain/aanvraag.ts

@@ -10,8 +10,8 @@
  */
 export type AanvraagType = 'registratie' | 'herregistratie' | 'intake';
 
-// Ingediend/MeerInfoGevraagd (ADR-0002/WP-63) are widened into the union so the parse
-// boundary + renderers are ready, but no backend path emits them yet — that's WP-65's
+// Ingediend/MeerInfoGevraagd (ADR-0002) are widened into the union so the parse
+// boundary + renderers are ready, but no backend path emits them yet — that's the
 // behandelaar-facing transition endpoint.
 export type AanvraagStatus =
   | { tag: 'Concept'; stepIndex: number; stepCount: number }
@@ -29,7 +29,7 @@ export interface Aanvraag {
   createdAt: string;
   updatedAt: string;
   submittedAt?: string;
-  /** The case owner (a BSN). Only populated by the admin cross-owner list (WP-36);
+  /** The case owner (a BSN). Only populated by the admin cross-owner list;
       the user's own list leaves it undefined. */
   owner?: string;
 }