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/articles.ts

@@ -1,4 +1,3 @@
-import { GraphQLError } from "graphql";
 import { builder } from "../builder";
 import { ArticleType } from "../types/index";
 import { articles, users } from "../../db/schema/index";
@@ -80,10 +79,7 @@ builder.queryField("adminListArticles", (t) =>
     type: [ArticleType],
     resolve: async (_root, _args, ctx) => {
       requireRole(ctx, "admin");
-      const articleList = await ctx.db
-        .select()
-        .from(articles)
-        .orderBy(desc(articles.publish_date));
+      const articleList = await ctx.db.select().from(articles).orderBy(desc(articles.publish_date));
       return Promise.all(articleList.map((article: any) => enrichArticle(ctx.db, article)));
     },
   }),