fix(MyShares): show tooltip when mouse over an item + fix the path

static/js/components/mySharesList.js

@@ -167,6 +167,8 @@ class MySharesList {
     _buildResourceLaneHeader(item) {
         const row = document.createElement('div');
         row.className = 'ms-resource-row';
+        if (item.resource.path) row.dataset.path = item.resource.path;
+        if (item.resource.owner_id) row.dataset.ownerId = item.resource.owner_id;
 
         row.appendChild(buildResourceIcon(item.resource, item.resource_type));
 
@@ -229,6 +231,13 @@ class MySharesList {
         if (_expiryState(grant.expires_at ?? null) === 'expired') {
             row.classList.add('ms-grant-row--expired');
         }
+        // In sharedWith mode each grant row represents a (resource → subject)
+        // pair, so stamp the resource hierarchy info for the hover tooltip.
+        // In items mode the row represents a subject — no resource attrs.
+        if (viewMode === 'sharedWith') {
+            if (item.resource.path) row.dataset.path = item.resource.path;
+            if (item.resource.owner_id) row.dataset.ownerId = item.resource.owner_id;
+        }
 
         row.appendChild(this._buildIdentity(grant, item, viewMode));
         row.appendChild(this._buildRolePill(grant.role));

static/js/features/itemTooltip.js

@@ -142,7 +142,7 @@ const _registry = new WeakMap();
 /** Containers known to expose `data-path`/`data-owner-id` for tooltip use.
  *  Add new opt-in row classes here when other views want the tooltip — each
  *  one must stamp the dataset attributes itself. */
-const _TOOLTIP_SELECTOR = '.file-item, .ms-resource-row';
+const _TOOLTIP_SELECTOR = '.file-item, .ms-resource-row, .ms-grant-row';
 
 /**
  * Attach tooltip listeners to every tooltip-capable row inside `container`.