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/app.routes.ts

@@ -20,7 +20,7 @@ export const routes: Routes = [
       },
       {
         path: 'aanvraag/:id',
-        // Same capability the werkvoorraad list itself is gated by (WP-64/65) — the
+        // Same capability the werkvoorraad list itself is gated by — the
         // detail page is reachable only from a row already filtered to that capability.
         canActivate: [capabilityGuard('aanvraag:beoordelen')],
         loadComponent: () =>
@@ -36,14 +36,14 @@ export const routes: Routes = [
       },
       {
         path: 'beheer/audit',
-        // Admin-only authz/PII-reveal audit trail (WP-41/42). capabilityGuard denies-by-default
+        // Admin-only authz/PII-reveal audit trail. capabilityGuard denies-by-default
         // unless GET /me resolved `cases:manage` (reused for audit read). Backend re-enforces.
         canActivate: [capabilityGuard('cases:manage')],
         loadComponent: () => import('@beheer/ui/audit.page').then((m) => m.AuditPage),
       },
       {
         path: 'beheer/functies',
-        // Admin-only feature-flag toggles (WP-47), gated by `flags:manage`.
+        // Admin-only feature-flag toggles, gated by `flags:manage`.
         canActivate: [capabilityGuard('flags:manage')],
         loadComponent: () =>
           import('@beheer/ui/feature-flags.page').then((m) => m.FeatureFlagsPage),