BL-024 - the last 21 native dialogs, onto the shared kit

S1 counted 79 native dialogs app-wide and its tasks removed 58; the audit
found the rest on surfaces no S1 task named: admin.js (6), users.js (10), the
launcher's inline script (5). All 21 now go through wp-dialog.js - the T7.9
kit extracted as a self-injecting shared component: markup and styles land on
first use, styles are theme tokens only with its own wp-dlg-* class names (the
consoles' existing .modal styles are untouched), 44px targets on coarse
pointers, and the whole file is guarded so the creator's inline copy - which
owns the same-id markup in its HTML - still wins on its own page. The kit's
toast comes along (S10 role rules), since none of the three pages had one.

Conversion follows the T7.9 precedent: confirms -> wpConfirmDialog with named
ok-labels, the password prompt -> wpPromptDialog whose validate() finally
enforces min-12 AT the input (it was label-text-only before, server-enforced),
API failures with detail -> wpAlertDialog, small info/validation messages ->
the announced toast.

New probe console_dialogs_check (17): counts pinned at 0, kit guarded and
loaded by all three pages, and the users console driven live with natives
poisoned - reset a password end to end (short refused inline, good one accepted
by the server and announced), cancel a delete and prove nothing died.

Items: BL-024 (closed), S1 completed to zero app-wide, C1.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/waves/backlog.md

@@ -525,7 +525,7 @@ deliberately deferred.
   a product conversation about where it displays and who reads it.
 - **Suggested wave or follow-up:** next revision; needs Nick for placement.
 
-### BL-024 — 21 native dialogs remain on the operator consoles and the launcher
+### BL-024 — CLOSED 2026-08-20 (wp-dialog.js, the T7.9 kit shared; 21 -> 0; `console_dialogs_check` 17)
 
 - **Found during:** T9.5 (the audit's dialog count)
 - **Where:** `admin.js` (6), `users.js` (10), `index.html` (5)