Change API for object property listing to work better with the ui.

src/database/database.js

@@ -225,16 +225,23 @@ function nestGroups(groups, props, filter, idx = 0) {
   // Build a map of key -> groups for this property
   const keyToGroups = {};
   for (const group of groups) {
-    const { key } = getKeyAndFilterVals(group._id[prop]);
-    if (!keyToGroups[key]) keyToGroups[key] = [];
-    keyToGroups[key].push(group);
+    const val = group._id[prop];
+    const { key } = getKeyAndFilterVals(val);
+    if (!keyToGroups[key]) {
+      keyToGroups[key] = {
+        groups: [],
+        value: val,
+      };
+    }
+    keyToGroups[key].groups.push(group);
   }
 
-  let map = {};
+  let result = [];
 
   if (filterPresent) {
     const filterValue = filter[prop]?.toString?.() ?? filter[prop];
-    for (const [key, groupList] of Object.entries(keyToGroups)) {
+    for (const [key, data] of Object.entries(keyToGroups)) {
+      const { groups: groupList, value } = data;
       // Check if any group in this key matches the filter (by _id or name)
       const matches = groupList.filter((group) => {
         const { filterVals } = getKeyAndFilterVals(group._id[prop]);
@@ -242,28 +249,36 @@ function nestGroups(groups, props, filter, idx = 0) {
         console.log('filterValue', filterValue);
         return filterVals.some((val) => val?.toString() === filterValue);
       });
+
+      let children = [];
       if (matches.length > 0) {
         if (idx === props.length - 1) {
           // Last property in filter, return items
-          let items = [];
           for (const group of matches) {
-            items = items.concat(group.objects.map(expandObjectIds));
+            children = children.concat(group.objects.map(expandObjectIds));
           }
-          map[key] = items;
         } else {
-          map[key] = nestGroups(matches, props, filter, idx + 1);
+          children = nestGroups(matches, props, filter, idx + 1);
         }
-      } else {
-        map[key] = {};
       }
+
+      result.push({
+        property: prop,
+        value: expandObjectIds(value),
+        children: children,
+      });
     }
   } else {
     // No filter for this property, just show all keys at this level with empty objects
-    for (const key of Object.keys(keyToGroups)) {
-      map[key] = {};
+    for (const [key, data] of Object.entries(keyToGroups)) {
+      result.push({
+        property: prop,
+        value: expandObjectIds(data.value),
+        children: [],
+      });
     }
   }
-  return map;
+  return result;
 }
 
 // Group objects by multiple properties and return nested groupings