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/backend/src/graphql/resolvers/comments.ts

@@ -87,11 +87,7 @@ builder.mutationField("deleteComment", (t) =>
       id: t.arg.int({ required: true }),
     },
     resolve: async (_root, args, ctx) => {
-      const comment = await ctx.db
-        .select()
-        .from(comments)
-        .where(eq(comments.id, args.id))
-        .limit(1);
+      const comment = await ctx.db.select().from(comments).where(eq(comments.id, args.id)).limit(1);
       if (!comment[0]) throw new GraphQLError("Comment not found");
       requireOwnerOrAdmin(ctx, comment[0].user_id);
       await ctx.db.delete(comments).where(eq(comments.id, args.id));