Ship production deployment and runtime observability

crates/remora-worker/src/client.rs

@@ -45,6 +45,17 @@ impl WorkerApiClient {
         .await
     }
 
+    pub async fn check(&self) -> Result<(), WorkerError> {
+        let url = format!("{}/internal/v1/health/ready", self.base_url);
+        self.client
+            .get(url)
+            .send()
+            .await
+            .map_err(|_| WorkerError::ApiUnavailable)
+            .and_then(classify)
+            .map(|_| ())
+    }
+
     pub async fn activate(
         &self,
         attempt_id: &OpaqueId,