fix(recovery): continue Retry after completed file preservation (#18845)

Reuse completed file preservation for task Retry and show bounded admission explanations, including newer saved messages and identifier routes.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

packages/shared/src/types/execution-projection.ts

@@ -101,6 +101,8 @@ export interface ExecutionReconciliation {
 export interface TaskInterruptionPresentation {
   providerFailure?: import("../provider-failure.generated.js").ProviderFailure;
   workspaceFailure?: { message: string };
+  /** A persisted Retry admission wait, normalized to public text by the server. */
+  retryWait?: { reason: string; message: string };
   intentId: string | null;
   responsibility: "system" | "user";
   state: "working" | "retry_scheduled" | "failed" | "waiting_for_user" | "resolved";