fix: no double fetch and caching

src/core/blitzkrieg/patientFetch.ts

@@ -0,0 +1,14 @@
+export async function patientFetch(url: string, timeout = 1 * 60 * 1000) {
+  let patientResponse: Response;
+
+  while (patientResponse! === undefined) {
+    try {
+      patientResponse = await fetch(url);
+    } catch (error) {
+      console.warn(`Failed to fetch ${url}; retrying in ${timeout}ms...`);
+      await new Promise((resolve) => setTimeout(resolve, timeout));
+    }
+  }
+
+  return patientResponse;
+}