003 event multiline shape

// ============================================================================
// Regression test: event input shape braces may begin on a following line
// Also verifies branch payload shapes can span multiple lines cleanly
// ============================================================================

~event example.write
    // intentionally keep the opening brace on the next line
{
    value: i32,
    note: []const u8,
}
| success {
    written: usize,
}
| failure {
    message: []const u8,
}