029 transform requires comptime

// Test 110: Transform Annotation Requires Comptime (MUST_ERROR)
// Tests that [transform] annotation without [comptime] fails compilation
//
// Expected Error: "Event 'badTransform' has [transform] annotation but is missing [comptime]"
//
// Design Rationale:
// - [comptime] controls WHERE (emits to backend_output_emitted.zig)
// - [transform] controls WHAT (declares transformation intent)
// - BOTH are required for transforms to work
// - Without [comptime], the transform won't be available and will fail silently
// - This validation catches the mistake immediately

~[transform]tor badTransform { count: i32 } -> (result: i32)

~proc badTransform|zig {
    return .{ .result = count * 2 };
}