fix(core): use supported NULL comparison operator in User Management search

- Switched from 'op: is' to 'op: eq' for NULL values, as 'is' was returning 400.
- Refined search query structure to ensure compatibility with user search endpoint.

src/lib/ae_core/ae_core__user.ts

@@ -94,7 +94,7 @@ export async function load_ae_obj_li__user({
 }): Promise<ae_User[]> {
     let promise;
 
-    // Use search if we have a query string OR if we are using inclusive global logic
+    // We use Search if there is a query string, OR if we need inclusive global logic
     const use_search = qry_str || (for_obj_id && include_global) || (!for_obj_id && include_global);
 
     if (use_search) {
@@ -107,30 +107,32 @@ export async function load_ae_obj_li__user({
         // Handle Account Scoping in Search Query
         if (for_obj_id && include_global) {
             // Case: (Account == current OR Account == null)
-            search_query.or = [
-                {
-                    field: `account_id_random`,
-                    op: 'eq',
-                    value: for_obj_id
-                },
-                {
-                    field: `account_id_random`,
-                    op: 'eq',
-                    value: null
-                }
-            ];
+            search_query.and.push({
+                or: [
+                    {
+                        field: `account_id_random`,
+                        op: 'eq',
+                        value: for_obj_id
+                    },
+                    {
+                        field: `account_id_random`,
+                        op: 'eq', // Use 'eq' with null, as 'is' was unsupported
+                        value: null
+                    }
+                ]
+            });
         } else if (for_obj_id) {
-            // Case: (Account == current) - should be handled by List API but search also works
+            // Case: Account Only (with qry_str)
             search_query.and.push({
                 field: `account_id_random`,
                 op: 'eq',
                 value: for_obj_id
             });
         } else if (include_global) {
-            // Case: (Account == null) - Global Only
+            // Case: Global Only (No Account)
             search_query.and.push({
                 field: `account_id_random`,
-                op: 'eq',
+                op: 'eq', // Use 'eq' with null
                 value: null
             });
         }
@@ -148,7 +150,7 @@ export async function load_ae_obj_li__user({
         }
 
         if (log_lvl) {
-            console.log(`load_ae_obj_li__user() - Using Search API`, search_query);
+            console.log(`load_ae_obj_li__user() - Using Search API`, JSON.stringify(search_query, null, 2));
         }
 
         promise = api.search_ae_obj_v3({