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/brief/ui/org-template.page.ts

@@ -7,7 +7,7 @@ import { AccessStore } from '@shared/application/access.store';
 import { OrgTemplateStore } from '@brief/application/org-template.store';
 import { OrgTemplateEditorComponent } from '@brief/ui/org-template-editor/org-template-editor.component';
 
-/** Page: thin container for the admin org-template editor (WP-26). Deny-by-default
+/** Page: thin container for the admin org-template editor. Deny-by-default
     capability gate (`orgtemplate:edit`) — a denial alert for non-admins, the editor
     for admins. Loads once the capability resolves; wires store commands to the organism. */
 @Component({