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/application/brief.store.ts

@@ -55,8 +55,8 @@ export class BriefStore implements PendingSave {
   /** Surfaced autosave state for the indicator + aria-live region. */
   readonly saveState = signal<SaveState>({ tag: 'Idle' });
 
-  /** Undo/redo is SHELL state, not machine state (WP-27): a `createHistory` stack of
-      `Brief` snapshots (WP-31 extracted the mechanics). Only CONTENT edits are recorded
+  /** Undo/redo is SHELL state, not machine state: a `createHistory` stack of
+      `Brief` snapshots (the mechanics live in a shared helper). Only CONTENT edits are recorded
       (they flow through `edit()`); status transitions never enter history, or undo would
       replay workflow state. Restore re-dispatches the existing `Seed` Msg — zero machine
       changes. */
@@ -64,7 +64,7 @@ export class BriefStore implements PendingSave {
   readonly canUndo = this.history.canUndo;
   readonly canRedo = this.history.canRedo;
 
-  /** The letter as it stood when it was REJECTED, captured shell-side (WP-27). The
+  /** The letter as it stood when it was REJECTED, captured shell-side. The
       approver diffs it against the resubmitted letter. POC limit: in-memory only, so a
       full page reload loses it — a real system would persist the rejected revision. */
   private rejectionSnapshot = signal<Brief | null>(null);
@@ -81,7 +81,7 @@ export class BriefStore implements PendingSave {
   );
   readonly hasRejectionDiff = computed(() => this.blockDiffs().size > 0);
 
-  /** The org template the letter renders with (WP-24). Server-owned appearance data,
+  /** The org template the letter renders with. Server-owned appearance data,
       not letter state — held beside the machine, never inside it (`brief.machine.ts`
       stays untouched by design). Set from every server view that carries it. */
   readonly orgTemplate = signal<OrgTemplate | null>(null);
@@ -125,7 +125,7 @@ export class BriefStore implements PendingSave {
     return !!b && canSubmit(b) && !hasBlockingErrors(this.diagnostics());
   });
 
-  /** True once a 404-triggered recovery has been attempted (RB-22, CQ-007's expand
+  /** True once a 404-triggered recovery has been attempted (CQ-007's expand
       half — see `recoverFromMissingBrief`). This is the structural once-only bound:
       a repeated 404 falls straight to the `error` branch below and can never reach
       `adapter.reset()` a second time, regardless of how many times `load()` runs. */
@@ -200,7 +200,7 @@ export class BriefStore implements PendingSave {
   }
 
   // 600ms debounced autosave (the server is the store of record). Timer mechanics live in
-  // the shared helper; `flushSave` below is the store-specific write + save-state (WP-31).
+  // the shared helper; `flushSave` below is the store-specific write + save-state.
   private debouncedSave = createDebouncedSave({
     canSave: () => this.canEdit(),
     flush: () => this.flushSave(),
@@ -223,7 +223,7 @@ export class BriefStore implements PendingSave {
     }
   }
 
-  /** Retry a failed autosave — reuses the existing flush path, no new state (WP-27). */
+  /** Retry a failed autosave — reuses the existing flush path, no new state. */
   retrySave() {
     void this.flushSave();
   }
@@ -311,7 +311,7 @@ export class BriefStore implements PendingSave {
         this.store.dispatch({ tag: 'Approved', by: s.approvedBy, at: s.approvedAt, decisions });
         break;
       case 'rejected':
-        // Capture the letter as-rejected for the resubmission diff (WP-27). This is the
+        // Capture the letter as-rejected for the resubmission diff. This is the
         // "before" snapshot the approver later compares against.
         this.rejectionSnapshot.set(brief);
         this.store.dispatch({