fix: resolve lint errors from ACL/admin implementation

- Remove unused requireOwnerOrAdmin import from videos.ts
- Remove unused requireAuth import from users.ts
- Remove unused GraphQLError import from articles.ts
- Replace URLSearchParams with SvelteURLSearchParams in admin users page
- Apply prettier formatting to all changed files

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/frontend/src/routes/users/[id]/+page.svelte

@@ -27,7 +27,7 @@
 <Meta
   title={displayName}
   description={data.user.description || `${displayName}'s profile`}
-  image={data.user.avatar ? getAssetUrl(data.user.avatar, "thumbnail") ?? undefined : undefined}
+  image={data.user.avatar ? (getAssetUrl(data.user.avatar, "thumbnail") ?? undefined) : undefined}
 />
 
 <div class="relative min-h-screen bg-gradient-to-br from-background via-primary/5 to-accent/5">
@@ -91,8 +91,6 @@
               >
             </div>
 
-
-
             {#if data.user.description}
               <p class="text-muted-foreground mb-4">
                 {data.user.description}
@@ -183,7 +181,7 @@
                 {$_("gamification.achievements")} ({data.gamification.achievements.length})
               </h3>
               <div class="grid grid-cols-2 md:grid-cols-4 lg:grid-cols-6 gap-3">
-                {#each (data.gamification?.achievements ?? []) as achievement (achievement.id)}
+                {#each data.gamification?.achievements ?? [] as achievement (achievement.id)}
                   <div
                     class="flex flex-col items-center gap-2 p-3 rounded-lg bg-accent/10 border border-border/30 hover:border-primary/50 transition-colors"
                     title={achievement.description}
@@ -194,7 +192,9 @@
                     </span>
                     {#if achievement.date_unlocked}
                       <span class="text-xs text-muted-foreground">
-                        {new Date(achievement.date_unlocked).toLocaleDateString($locale ?? undefined)}
+                        {new Date(achievement.date_unlocked).toLocaleDateString(
+                          $locale ?? undefined,
+                        )}
                       </span>
                     {/if}
                   </div>