fix(core): improve User Management filtering and scope support

- Updated load_ae_obj_li__user to use search_ae_obj_v3 for complex account OR global filtering.
- Fixed zero-results issue by defaulting to 'All' scope (Current Account + Global).
- Added visual 'Account' vs 'Global' badges to user cards.
- Added 'Scope' selector to User Management page.

src/routes/core/users/+page.svelte

@@ -3,18 +3,31 @@
     import { load_ae_obj_li__user, create_ae_obj__user } from '$lib/ae_core/ae_core__user';
     import { ae_api, ae_loc } from '$lib/stores/ae_stores';
     import { goto } from '$app/navigation';
-    import { Plus, Search, User, ShieldCheck, Mail } from 'lucide-svelte';
+    import { Plus, Search, User, ShieldCheck, Mail, Globe, Landmark } from 'lucide-svelte';
 
     let user_li: any[] = $state([]);
     let loading = $state(true);
     let qry_str = $state('');
     let qry_enabled = $state('all');
+    let qry_account_scope = $state('all'); // 'all', 'account', 'global'
 
     async function load_users() {
         loading = true;
+        
+        let for_obj_id: string | null = $ae_loc.account_id;
+        let include_global = true;
+
+        if (qry_account_scope === 'account') {
+            include_global = false;
+        } else if (qry_account_scope === 'global') {
+            for_obj_id = null;
+            include_global = true; // This will trigger the (account_id IS NULL) logic in the search if no qry_str
+        }
+
         user_li = await load_ae_obj_li__user({
             api_cfg: $ae_api,
-            for_obj_id: $ae_loc.account_id,
+            for_obj_id: for_obj_id,
+            include_global: include_global,
             qry_str: qry_str || null,
             enabled: qry_enabled as any,
             log_lvl: 1
@@ -35,9 +48,12 @@
         if (!username) return;
         const email = prompt('Enter email address:');
         
+        // Link to account if scope is 'account' or 'all', otherwise create global user
+        const account_id = qry_account_scope === 'global' ? undefined : $ae_loc.account_id;
+
         await create_ae_obj__user({
             api_cfg: $ae_api,
-            account_id: $ae_loc.account_id,
+            account_id: account_id,
             data_kv: { username, email, enable: true },
             log_lvl: 1
         });
@@ -65,6 +81,16 @@
                 <button class="variant-filled-secondary" onclick={load_users}>Go</button>
             </div>
         </label>
+        
+        <label class="label">
+            <span>Scope</span>
+            <select class="select w-48" bind:value={qry_account_scope} onchange={load_users}>
+                <option value="all">All (Current + Global)</option>
+                <option value="account">Current Account Only</option>
+                <option value="global">Global Only (No Account)</option>
+            </select>
+        </label>
+
         <label class="label">
             <span>Status</span>
             <select class="select w-32" bind:value={qry_enabled} onchange={load_users}>
@@ -94,11 +120,22 @@
                                     <p class="text-xs opacity-60">{user.name || '--'}</p>
                                 </div>
                             </div>
-                            {#if user.super}
-                                <span class="badge variant-filled-error">Super</span>
-                            {:else if user.manager}
-                                <span class="badge variant-filled-warning">Manager</span>
-                            {/if}
+                            <div class="flex flex-col items-end gap-1">
+                                {#if user.super}
+                                    <span class="badge variant-filled-error">Super</span>
+                                {:else if user.manager}
+                                    <span class="badge variant-filled-warning">Manager</span>
+                                {/if}
+                                {#if !user.account_id && !user.account_id_random}
+                                    <span class="badge variant-soft-secondary flex items-center gap-1">
+                                        <Globe size={10} /> Global
+                                    </span>
+                                {:else}
+                                    <span class="badge variant-soft-primary flex items-center gap-1">
+                                        <Landmark size={10} /> Account
+                                    </span>
+                                {/if}
+                            </div>
                         </header>
                         <div class="flex items-center gap-2 text-sm opacity-80">
                             <Mail size={14} />