Add player controls and configurable profiles

prisma/migrations/20260515193000_profile_and_app_settings/migration.sql

@@ -0,0 +1,9 @@
+ALTER TABLE "User" ADD COLUMN "avatarUrl" TEXT;
+
+CREATE TABLE "AppSetting" (
+    "key" TEXT NOT NULL,
+    "value" TEXT NOT NULL,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "AppSetting_pkey" PRIMARY KEY ("key")
+);