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/letter-canvas/letter-canvas.stories.ts

@@ -127,12 +127,12 @@ export const ReadOnlyZonderBevindingen: Story = {
   args: { editableRegions: 'none', diagnostics: [] },
 };
 
-/** Admin editor focus (consumer arrives in WP-26): body read-only, no "not yours" tint. */
+/** Admin editor focus: body read-only, no "not yours" tint. */
 export const TemplateMode: Story = { args: { editableRegions: 'template' } };
 
 export const Zoomed: Story = { args: { editableRegions: 'none', zoom: 0.6 } };
 
-/** Approver's "Toon wijzigingen": blocks changed/added since rejection are badged (WP-27). */
+/** Approver's "Toon wijzigingen": blocks changed/added since rejection are badged. */
 export const WithDiff: Story = {
   args: {
     editableRegions: 'none',
@@ -150,14 +150,14 @@ export const PageBreak: Story = {
   args: { editableRegions: 'none', brief: longBrief, diagnostics: [] },
 };
 
-// Inline SVG so the story needs no backend/upload round-trip (WP-26 logo upload).
+// Inline SVG so the story needs no backend/upload round-trip (the logo upload).
 const sampleLogo =
   'data:image/svg+xml;utf8,' +
   encodeURIComponent(
     '<svg xmlns="http://www.w3.org/2000/svg" width="120" height="40"><rect width="120" height="40" fill="#003366"/><text x="60" y="25" font-size="14" fill="white" text-anchor="middle">CIBG</text></svg>',
   );
 
-/** Published org logo (WP-26 AC2): the letterhead shows it above the org name. */
+/** Published org logo: the letterhead shows it above the org name. */
 export const MetLogo: Story = {
   args: { editableRegions: 'none', diagnostics: [], logoUrl: sampleLogo },
 };