feat: redesign match play and add broadcast tooling

scripts/test-auth.ts

@@ -0,0 +1,16 @@
+/** Run against an empty test database created from the current application schema. */
+const base = process.env.AUTH_TEST_DATABASE_URL ?? process.env.DB_URL ?? process.env.DATABASE_URL;
+if (!base) throw new Error('Provide AUTH_TEST_DATABASE_URL');
+const url = new URL(base);
+if (!process.env.AUTH_TEST_DATABASE_URL) url.pathname = '/esports_auth_test_20260928';
+if (!url.pathname.startsWith('/esports_auth_test'))
+	throw new Error('Refusing to run against a non-test database');
+const child = Bun.spawn(
+	['bun', '--bun', 'x', 'vitest', '--run', 'src/lib/server/auth.integration.test.ts'],
+	{
+		env: { ...process.env, AUTH_TEST_DATABASE_URL: url.toString() },
+		stdout: 'inherit',
+		stderr: 'inherit'
+	}
+);
+process.exit(await child.exited);