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/admin/users/+page.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
   import { goto, invalidateAll } from "$app/navigation";
   import { page } from "$app/state";
+  import { SvelteURLSearchParams } from "svelte/reactivity";
   import { toast } from "svelte-sonner";
   import { adminUpdateUser, adminDeleteUser } from "$lib/services";
   import { getAssetUrl } from "$lib/api";
@@ -25,7 +26,7 @@
   function debounceSearch(value: string) {
     clearTimeout(searchTimeout);
     searchTimeout = setTimeout(() => {
-      const params = new URLSearchParams(page.url.searchParams);
+      const params = new SvelteURLSearchParams(page.url.searchParams.toString());
       if (value) params.set("search", value);
       else params.delete("search");
       params.delete("offset");
@@ -34,7 +35,7 @@
   }
 
   function setRole(role: string) {
-    const params = new URLSearchParams(page.url.searchParams);
+    const params = new SvelteURLSearchParams(page.url.searchParams.toString());
     if (role) params.set("role", role);
     else params.delete("role");
     params.delete("offset");
@@ -193,7 +194,7 @@
           variant="outline"
           disabled={data.offset === 0}
           onclick={() => {
-            const params = new URLSearchParams(page.url.searchParams);
+            const params = new SvelteURLSearchParams(page.url.searchParams.toString());
             params.set("offset", String(Math.max(0, data.offset - data.limit)));
             goto(`?${params.toString()}`);
           }}
@@ -205,7 +206,7 @@
           variant="outline"
           disabled={data.offset + data.limit >= data.total}
           onclick={() => {
-            const params = new URLSearchParams(page.url.searchParams);
+            const params = new SvelteURLSearchParams(page.url.searchParams.toString());
             params.set("offset", String(data.offset + data.limit));
             goto(`?${params.toString()}`);
           }}
@@ -230,11 +231,7 @@
     </Dialog.Header>
     <Dialog.Footer>
       <Button variant="outline" onclick={() => (deleteOpen = false)}>Cancel</Button>
-      <Button
-        variant="destructive"
-        disabled={deleting}
-        onclick={handleDelete}
-      >
+      <Button variant="destructive" disabled={deleting} onclick={handleDelete}>
         {deleting ? "Deleting…" : "Delete"}
       </Button>
     </Dialog.Footer>