feat: add bounded binary API request bodies

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

@@ -0,0 +1,11 @@
+use api_macros::api;
+
+pub struct Response;
+
+#[api]
+pub trait InvalidBinaryMethod {
+    #[get("/payload")]
+    async fn download(&self, #[binary] body: api_macros::BinaryBody) -> Response;
+}
+
+fn main() {}