feat: add benchmark submission page and button

app/game/[id]/game-page-client.tsx

@@ -11,7 +11,10 @@ import {
   ClockIcon,
   SparklesIcon,
   DatabaseIcon,
+  Plus,
 } from "lucide-react"
+import Link from "next/link"
+import { useSession } from "@/lib/auth-client"
 import { FaSteam } from "react-icons/fa"
 import { motion } from "motion/react"
 
@@ -181,6 +184,7 @@ export function GamePageClient({
   presets,
   gameId,
 }: Props) {
+  const { data: session } = useSession()
   const [imgError, setImgError] = useState(false)
   const [stats, setStats] = useState<StatsResponse | null>(null)
   const [selectedDevices, setSelectedDevices] = useState<string[]>([])
@@ -360,6 +364,15 @@ export function GamePageClient({
                 </span>
               )}
               <BookmarkButton gameId={game.id} />
+              {session && (
+                <Link
+                  href={`/game/${game.id}/submit`}
+                  className="inline-flex items-center gap-2 px-4 py-2 rounded-lg bg-primary text-white text-sm font-semibold hover:bg-primary/90 transition-colors"
+                >
+                  <Plus className="h-4 w-4" />
+                  Add Benchmark
+                </Link>
+              )}
             </div>
 
             {/* External links */}

app/game/[id]/submit/page.tsx

@@ -0,0 +1,78 @@
+import { notFound } from "next/navigation"
+import { db } from "@/lib/db/index"
+import { games, gameVersions } from "@/lib/db/schema"
+import { eq, sql } from "drizzle-orm"
+import { GameEntryWizard } from "@/components/wizard/game-entry-wizard"
+
+export const metadata = {
+  title: "Submit Benchmark",
+}
+
+export default async function SubmitBenchmarkPage({
+  params,
+}: {
+  params: Promise<{ id: string }>
+}) {
+  const { id } = await params
+
+  // Resolve game
+  const isNumeric = /^\d+$/.test(id)
+  let game
+
+  if (isNumeric) {
+    const rows = await db
+      .select()
+      .from(games)
+      .where(eq(games.steamAppId, Number(id)))
+      .limit(1)
+    game = rows[0]
+  } else {
+    const rows = await db
+      .select()
+      .from(games)
+      .where(eq(games.id, id))
+      .limit(1)
+    game = rows[0]
+  }
+
+  if (!game) {
+    notFound()
+  }
+
+  // Get or create the latest game version
+  let [version] = await db
+    .select()
+    .from(gameVersions)
+    .where(
+      eq(gameVersions.gameId, game.id),
+    )
+    .orderBy(sql`${gameVersions.createdAt} DESC`)
+    .limit(1)
+
+  // Create a default version if none exists
+  if (!version) {
+    [version] = await db
+      .insert(gameVersions)
+      .values({
+        gameId: game.id,
+        isLatest: true,
+      })
+      .returning()
+  }
+
+  return (
+    <div className="max-w-2xl mx-auto px-4 py-8">
+      <div className="mb-8">
+        <h1 className="text-2xl font-bold mb-2">Submit Benchmark</h1>
+        <p className="text-sm text-text/60">
+          Submit performance data for <span className="text-text font-medium">{game.title}</span>
+        </p>
+      </div>
+
+      <GameEntryWizard
+        gameId={game.id}
+        gameVersionId={version.id}
+      />
+    </div>
+  )
+}