chore: import upstream snapshot with attribution

apps/webapp/app/v3/services/billingLimit/billingLimitPendingResolveFailure.server.ts

@@ -0,0 +1,11 @@
+export type PendingBillingLimitResolveFailureClass =
+  | "cancel-failing"
+  | "converge-failing"
+  | "ack-only";
+
+/** Used in converge logs to classify stuck pending resolves. */
+export function classifyPendingBillingLimitResolveConvergeFailure(
+  resumeMode: "queue" | "new_only"
+): Exclude<PendingBillingLimitResolveFailureClass, "ack-only"> {
+  return resumeMode === "new_only" ? "cancel-failing" : "converge-failing";
+}