fix(coding-agent): correct install.sh fallback URL in omp update warning

The fallback reinstall hint printed when omp update can't verify the new
binary pointed at https://raw.githubusercontent.com/can1357/oh-my-pi/main/install.sh,
which returns 404. The installer actually lives at scripts/install.sh
(consistent with the README install instructions).

packages/coding-agent/src/cli/update-cli.ts

@@ -237,7 +237,7 @@ async function printVerification(expectedVersion: string): Promise<void> {
 	}
 	console.log(
 		chalk.yellow(
-			`You may need to reinstall: curl -fsSL https://raw.githubusercontent.com/${REPO}/main/install.sh | bash`,
+			`You may need to reinstall: curl -fsSL https://raw.githubusercontent.com/${REPO}/main/scripts/install.sh | bash`,
 		),
 	);
 }