Small UI fixes: judge register preselect, input labels, docs link

TODO.md

@@ -32,14 +32,7 @@ Open items as of 2026-09-06. Delete a line when it is done.
 
 ## Housekeeping
 
-- [ ] **5 pre-existing lint errors**, all `import/consistent-type-specifier-style`:
-      `app/HomePageClient.tsx`, `app/projects/ProjectsPageClient.tsx`,
-      `components/admin/hackathons/RegistrationControls.tsx`,
-      `lib/club-projects.test.ts`. `eslint --fix` clears them; kept out of the
-      p99 commits to keep those diffs readable.
 - [ ] **Confirm the `/events` staleness call.** The page was `force-dynamic` and
       is now `revalidate = 300`, matching `/projects`. `proxy.ts` already serves
       that path `max-age=3600`, so nobody could observe the old freshness — but
       it was an explicit choice, so it is worth a second opinion.
-- [ ] **`nul`** — a 0-byte file at the repo root from a stray `> nul` redirect.
-      Gitignored, inert, deletable.

sites/mainweb/app/(portal)/judge/register/page.tsx

@@ -1,7 +1,7 @@
 "use client";
 
 import React, { useEffect, useState } from "react";
-import { useRouter } from "next/navigation";
+import { useRouter, useSearchParams } from "next/navigation";
 import { useSession } from "next-auth/react";
 import { trpc } from "@/lib/trpc";
 import { LiquidGlass } from "@/components/portal/LiquidGlass";
@@ -41,7 +41,12 @@ export default function JudgeRegisterPage() {
   });
 
   // Form State
-  const [hackathonId, setHackathonId] = useState("");
+  // /judge links here with the edition already chosen; starting step 0 empty
+  // made the judge pick it again.
+  const searchParams = useSearchParams();
+  const [hackathonId, setHackathonId] = useState(
+    () => searchParams.get("hackathonId") ?? "",
+  );
   const [preferredTrack, setPreferredTrack] = useState("");
   const [name, setName] = useState("");
   const [email, setEmail] = useState("");

sites/mainweb/app/(portal)/submit/page.tsx

@@ -424,6 +424,7 @@ function SubmitPortalContent() {
                       <div className="pt-2 space-y-3">
                         <input
                           type="text"
+                          aria-label="Team name"
                           placeholder="Awesome Team Name"
                           value={teamName}
                           onChange={(e) => setTeamName(e.target.value)}
@@ -460,6 +461,7 @@ function SubmitPortalContent() {
                       <div className="space-y-3">
                         <input
                           type="text"
+                          aria-label="Invite ID"
                           placeholder="Paste Invite ID…"
                           value={joinTeamId}
                           onChange={(e) => setJoinTeamId(e.target.value)}

sites/mainweb/app/docs/DocsPageClient.tsx

@@ -419,7 +419,10 @@ export default function DocsPageClient() {
               </div>
               <div className="flex items-center gap-4">
                 <Link
-                  href="#"
+                  href="https://github.com/DataScience-GT"
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  aria-label="DSGT on GitHub"
                   className="text-gray-500 transition-colors hover:text-white"
                 >
                   <svg