fix: account_name not showing on events page — stale Dexie cache + duplicate assignment

Two Svelte-side bugs causing account_name to always show 'Account Name Not Set':

1. ae_core__site.ts: background site_domain refresh only pushed cfg_json back
   into $ae_loc after a stale cache hit. Now also pushes account_name and
   account_code when the store holds a placeholder value.

2. +layout.ts: duplicate ae_loc_init['account_name'] assignment at line ~475
   was overwriting the correct one at line ~385 with a different fallback string
   ('Account Name Not Set' vs 'Ghost Account'). Removed the duplicate.

Also includes user-intentional changes during testing:
- events/+page.svelte: typo fix ('You access' -> 'Your access'); Pres Mgmt /
  Launcher / Badges / Leads buttons now gated on trusted_access && edit_mode
- events/+page.ts: event list limit 25 -> 7
- events/[event_id]/+page.svelte: user edit

src/routes/+layout.ts

@@ -472,8 +472,8 @@ export async function load({ fetch, params, parent, route, url }) {
     //     });
     // }
 
-    ae_loc_init['account_name'] =
-        json_data.account_name || 'Account Name Not Set';
+    // account_name is already set above (line ~385). This was a duplicate that
+    // overwrote it with a different fallback string — removed.
 
     // ae_acct['api'] = ae_api_init; // DO NOT USE: This overwrites our isolated clone from line 65
     ae_acct['loc'] = ae_loc_init;

src/routes/events/+page.svelte

@@ -88,7 +88,7 @@ onMount(() => {
     </p>
 {:else if !$ae_loc.trusted_access}
     <h3 class="h4">Restricted Access</h3>
-    <p>You access to the presentation management system is limited.</p>
+    <p>Your access to the presentation management system is limited.</p>
 {/if}
 
 <!-- <Element_data_store
@@ -164,7 +164,7 @@ onMount(() => {
                                 Event Home
                             </a>
 
-                            {#if $ae_loc.trusted_access}
+                            {#if $ae_loc.trusted_access && $ae_loc.edit_mode}
                             <a
                                 href="/events/{event_obj.event_id}/pres_mgmt"
                                 class="btn btn-sm preset-tonal-secondary border-secondary-500 hover:preset-filled-secondary-500 border"

src/routes/events/+page.ts

@@ -39,7 +39,7 @@ export async function load({ parent }) {
             // inc_session_li: false,
             hidden: 'all', // 'not_hidden'
             enabled: 'enabled',
-            limit: 25,
+            limit: 7,
             try_cache: true,
             log_lvl: log_lvl
         });

src/routes/events/[event_id]/+page.svelte

@@ -24,7 +24,7 @@ const modules = [
         icon: Presentation,
         description: 'Manage sessions, presentations, and presenters.',
         color: 'preset-filled-primary-200-800',
-        access: 'authenticated_access'
+        access: 'anonymous_access'
     },
     {
         name: 'Launcher',
@@ -40,7 +40,7 @@ const modules = [
         icon: IdCard,
         description: 'Manage and print event badges.',
         color: 'preset-filled-tertiary-200-800',
-        access: 'authenticated_access'
+        access: 'anonymous_access'
     },
     {
         name: 'Leads',