feat: add /friends page and /settings/friends top-friends management

thoughts-frontend/app/settings/friends/page.tsx

@@ -0,0 +1,34 @@
+import { cookies } from "next/headers";
+import { redirect } from "next/navigation";
+import { getMe, getMyFriends, getTopFriends } from "@/lib/api";
+import { TopFriendsEditor } from "@/components/top-friends-editor";
+
+export default async function FriendsSettingsPage() {
+  const token = (await cookies()).get("auth_token")?.value;
+  if (!token) redirect("/login");
+
+  const me = await getMe(token).catch(() => null);
+  if (!me) redirect("/login");
+
+  const [localFriendsData, topFriendsData] = await Promise.all([
+    getMyFriends(token).catch(() => ({ items: [], total: 0, page: 1, perPage: 50 })),
+    getTopFriends(me.username, token).catch(() => ({ topFriends: [] })),
+  ]);
+
+  return (
+    <div className="space-y-6">
+      <div className="glass-effect glossy-effect bottom rounded-md shadow-fa-lg p-4">
+        <h3 className="text-lg font-medium">Top Friends</h3>
+        <p className="text-sm text-muted-foreground">
+          Choose up to 8 friends to feature on your profile. Only local friends
+          can be top friends.
+        </p>
+      </div>
+      <TopFriendsEditor
+        token={token}
+        initialTopFriends={topFriendsData.topFriends}
+        localFriends={localFriendsData.items}
+      />
+    </div>
+  );
+}