[WC-3084] feat(datagrid-web): add WCAG 4.1.3 status region and selection accessibility improvements

packages/modules/data-widgets/src/themesource/datawidgets/web/_datagrid.scss

@@ -132,10 +132,6 @@ $root: ".widget-datagrid";
                 z-index: 1;
             }
 
-            &:focus:not(:focus-visible) {
-                outline: none;
-            }
-
             &:focus-visible {
                 outline: 1px solid var(--brand-primary, $brand-primary);
             }
@@ -285,10 +281,6 @@ $root: ".widget-datagrid";
         }
     }
 
-    & *:focus {
-        outline: 0;
-    }
-
     .align-column-left {
         justify-content: flex-start;
     }
@@ -576,6 +568,15 @@ $root: ".widget-datagrid";
     &:focus-visible {
         background-color: var(--brand-primary-50, $color-default-lighter);
     }
+
+    &:focus-visible {
+        outline: 1px solid var(--brand-primary, $brand-primary);
+    }
+
+    &[aria-disabled="true"] {
+        opacity: 0.5;
+        cursor: not-allowed;
+    }
 }
 
 :where(#{$root}-selection-counter) {

packages/pluggableWidgets/datagrid-web/CHANGELOG.md

@@ -6,6 +6,17 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+### Added
+
+- Screen reader announcement region that announces selection count changes when rows are selected or deselected (WCAG 4.1.3).
+- Accessible label ("Select all rows") to the select-all checkbox.
+
+### Fixed
+
+- Keyboard focus indicators inside the data grid are no longer hidden by blanket CSS rules.
+- Selection clearing no longer causes keyboard focus loss; focus now returns to the select-all checkbox or active grid cell.
+- Screen readers no longer announce row selection state twice (as both "selected" and "checked") when using checkboxes.
+
 ## [3.11.3] - 2026-07-27
 
 ### Added