chore(spec): regenerate references/data/object.mdx from the merged tree

The os-regen driver kept one side of this generated file at the merge;
gen:schema + gen:docs on the committed merge carry both main's action.aria
tombstone row and this branch's precision describe.

Claude-Session: https://claude.ai/code/session_01B3TqpoQbTAfG7G74GMDWNW
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

content/docs/references/data/object.mdx

@@ -478,7 +478,7 @@ const result = ApiMethod.parse(data);
 | **opensInNewTab** | `boolean` | optional | Open the action result in a new tab. The renderer pre-opens the tab synchronously on click (popup-blocker-safe) and navigates it to the handler's redirectUrl. |
 | **newTabUrl** | `string` | optional | Direct new-tab URL template (`{recordId}` placeholder). When set with opensInNewTab, the renderer navigates the pre-opened tab here immediately — no action POST. The endpoint must enforce auth itself. |
 | **onSuccess** | `{ navigate: string; openIn?: Enum<'self' \| 'newTab'> }` | optional | Post-success navigation for type:'api' and type:'script' actions. `navigate` is a route/URL template interpolating $`{param.*}`, $`{ctx.*}` and $`{result.*}` (the server response); `openIn` defaults 'self'. The handler-return convention (`{ redirectUrl }` without openIn) keeps its 17.0.0 new-tab behavior. |
-| **aria** | `{ ariaLabel?: string \| Record<string, string>; ariaDescribedBy?: string; role?: string }` | optional | ARIA accessibility attributes |
+| **aria** | `never` | optional | [REMOVED] `action.aria` was removed in @objectstack/spec 17.5.0 (ADR-0049 enforce-or-remove) — no action surface ever applied it: the button, icon, menu, group and bar renderers, the row and bulk action menus and the record quick-actions toolbar all take the accessible name from the action's `label` and never read this block, so ARIA attributes declared here parsed and then silently did not reach the DOM. Delete the key. The accessible name that IS applied is the action's required `label` — the visible button or menu-item text, and the `aria-label` of an icon-only action — so write the name you meant there. To name the region that PLACES the actions, author `ariaLabel` / `ariaDescribedBy` / `role` in the `aria` block of the placing node: `page.components[].aria` (the component that renders the actions) or the list view `aria`. Run `os migrate meta --from 17` to list the mechanical edits for existing sources; apply them by hand. |
 | **_lock** | `Enum<'none' \| 'no-overlay' \| 'no-delete' \| 'full'>` | optional | Item-level lock — controls overlay & delete (ADR-0010). |
 | **_lockReason** | `string` | optional | Human-readable reason shown when a write is refused by _lock. |
 | **_lockSource** | `Enum<'artifact' \| 'package' \| 'env-forced'>` | optional | Layer that set _lock (artifact \| package \| env-forced). |