Add bands/artists index pages and redirect top page

- / now redirects to /bands
- /bands shows band list with "+ Band" link
- /artists shows artist list with "+ Artist" link
- Nav simplified to Bands / Artists only

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

1 files changed, 33 insertions, 0 deletions

diff --git a/app/routes/artist-index.tsx b/app/routes/artist-index.tsx
new file mode 100644
index 0000000..9981567
--- /dev/null
+++ b/app/routes/artist-index.tsx
@@ -0,0 +1,33 @@
+import { Link, useLoaderData } from "react-router";
+import { listArtists } from "~/lib/db.server";
+
+export function loader() {
+  return { artists: listArtists() };
+}
+
+export default function ArtistIndex() {
+  const { artists } = useLoaderData<typeof loader>();
+  return (
+    <main>
+      <div className="page-header">
+        <h1>Artists</h1>
+        <Link to="/artists/new">+ Artist</Link>
+      </div>
+
+      {artists.length === 0 ? (
+        <p className="muted">
+          アーティストがまだありません。{" "}
+          <Link to="/artists/new">追加する</Link>
+        </p>
+      ) : (
+        <ul className="band-list">
+          {artists.map((artist) => (
+            <li key={artist.id}>
+              <Link to={`/artists/of/${artist.id}`}>{artist.name}</Link>
+            </li>
+          ))}
+        </ul>
+      )}
+    </main>
+  );
+}