docs(changeset): objectui#11227's pending grid entry is corrected — keyboardNavigation is published and read since objectui#11068's build

The entry's bullet says the key "is not published" and "nothing in the
grid reads it yet". That text is still pending on main, so it would ship
false beside this build. A dated correction paragraph is appended, in the
shape this branch used on 10976-table-slot-relay.md; the original text
is kept.

Claude-Session: https://claude.ai/code/session_016tKoy8NJa35Yih1FdzrVmn
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

.changeset/11227-object-grid-17-6-keys.md

@@ -37,3 +37,10 @@ string is drawn as before.
 - TypeScript code that reads `emptyState.title` or `.message` as a `string` no longer
   type-checks. Resolve the value first, for example with `resolveI18nLabel` from
   `@objectstack/spec/ui`.
+
+**Correction, 2026-10-03 (objectui#11068, the `keyboardNavigation` build).** The bullet above
+that says `keyboardNavigation` "is not published" and that "nothing in the grid reads it yet" is
+superseded. The grid honours the key, with arrow-key cell navigation that is on by default when
+the grid renders editable, and it is in the grid's declared inputs, so the designer panel, the
+component manifest and the generated `sdui-intrinsics.d.ts` offer it
+(`.changeset/11068-keyboard-navigation.md`).