feat: add shared API operation metadata macro

crates/api-macros/tests/ui/invalid_success_status.rs

@@ -0,0 +1,11 @@
+use api_macros::api;
+
+pub struct Response;
+
+#[api]
+pub trait InvalidSuccessStatus {
+    #[get("/widgets", status = 404)]
+    async fn list(&self) -> Response;
+}
+
+fn main() {}