fix: add missing each-block keys (svelte/require-each-key)

Fixed all 27 remaining instances across 19 files. Keys used:
- Object ID fields where available (e.g. account_id_random, event_file_id)
- index for logger lists with no reliable unique key
- Property name for Object.entries() loops

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

@@ -14,7 +14,7 @@
 
     async function load_users() {
         loading = true;
-        
+
         let for_obj_id: string | null = $ae_loc.account_id;
         let include_global = true;
 
@@ -48,7 +48,7 @@
         const username = prompt('Enter new username:');
         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;
 
@@ -87,12 +87,12 @@
                     <div class="flex items-center justify-center px-4 bg-surface-300-600-token border-r border-surface-500/20">
                         <Search size={18} class="opacity-50" />
                     </div>
-                    <input 
+                    <input
                         class="bg-transparent border-0 ring-0 focus:ring-0 p-3 grow placeholder:opacity-50"
-                        type="search" 
-                        bind:value={qry_str} 
-                        placeholder="Search username or email..." 
-                        onkeydown={(e) => e.key === 'Enter' && load_users()} 
+                        type="search"
+                        bind:value={qry_str}
+                        placeholder="Search username or email..."
+                        onkeydown={(e) => e.key === 'Enter' && load_users()}
                     />
                     <button class="variant-filled-primary font-bold px-10 py-3 hover:brightness-110 transition-all border-l border-surface-500/20 flex items-center justify-center min-w-[100px]" onclick={load_users} disabled={loading}>
                         {#if loading}
@@ -145,7 +145,7 @@
             </h3>
 
             <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
-                {#each user_li as user}
+                {#each user_li as user (user.user_id_random)}
                     <div class="card p-5 space-y-4 variant-soft-surface shadow-md border border-surface-500/10 hover:border-primary-500/30 transition-all group">
                         <header class="flex justify-between items-start">
                             <div class="flex items-center gap-3">
@@ -174,7 +174,7 @@
                                 {/if}
                             </div>
                         </header>
-                        
+
                         <div class="space-y-2">
                             <div class="flex items-center gap-2 text-xs opacity-70 bg-black/5 p-2 rounded-lg">
                                 <Mail size={14} class="text-primary-500" />