Overhaul Exhibitor Leads Manage tab and resolve all TypeScript errors

- Implemented full Staff License management (CRUD for license_li_json).
- Added Admin Tools section for managers (Payment status, Max licenses, Device counts).
- Implemented App Settings (Refresh interval, navigation preferences, cache management).
- Fixed all remaining TypeScript errors in Badge and Presentation modules.
- Integrated Payment tab conditional visibility logic.

src/routes/events/[event_id]/(badges)/badges/[badge_id]/+page.svelte

@@ -183,10 +183,10 @@
         </a>
     </header>
 
-    {#if $lq__event_badge_obj}
+    {#if $lq__event_badge_obj && $lq__event_badge_obj.event_id && event_badge_id}
         <Comp_badge_obj_view
-            event_id={$lq__event_badge_obj.event_id}
-            {event_badge_id}
+            event_id={$lq__event_badge_obj.event_id as string}
+            event_badge_id={event_badge_id as string}
             {lq__event_badge_obj}
             {is_review_mode}
             {lq__event_badge_template_obj}