Add list orders by address endpoint #492

					
				@ -81,6 +81,14 @@ impl TestRouter {

				            .await

				    }

				    pub(crate) async fn list_orders(&self, address: Option<&str>) -> reqwest::Result<Vec<u32>> {

- pub(crate) async fn list_orders(&self, address: Option<&str>) -> reqwest::Result<Vec<u32>> {
- 	let mut url = format!("{}/api/router/orders", self.api_endpoint());
- 	if let Some(addr) = address {
- 		url.push_str(&format!("?address={addr}"));
- 	}
- 	reqwest::Client::new().get(url).send().await?.json().await
- }
+ pub(crate) async fn list_orders(&self, address: Option<&str>) -> reqwest::Result<Vec<u32>> {
+     reqwest::Client::new()
+         .get(format!("{}/api/router/orders", self.api_endpoint()))
+         .query(&address.map(|addr| [("address", addr)]))
+         .send()
+         .await?
+         .json()
+         .await
+ }

Would it be cleaner do something like this with reqwest's query handler instead of manipulating strings directly?

```diff - pub(crate) async fn list_orders(&self, address: Option<&str>) -> reqwest::Result<Vec<u32>> { - let mut url = format!("{}/api/router/orders", self.api_endpoint()); - if let Some(addr) = address { - url.push_str(&format!("?address={addr}")); - } - reqwest::Client::new().get(url).send().await?.json().await - } + pub(crate) async fn list_orders(&self, address: Option<&str>) -> reqwest::Result<Vec<u32>> { + reqwest::Client::new() + .get(format!("{}/api/router/orders", self.api_endpoint())) + .query(&address.map(|addr| [("address", addr)])) + .send() + .await? + .json() + .await + } ``` Would it be cleaner do something like this with reqwest's query handler instead of manipulating strings directly?