Harden async task flows and enhance analysis tooling

tests/e2e/helpers/mockApp.ts

@@ -232,6 +232,10 @@ function createTask(state: MockAppState, input: {
     progress: input.progress ?? 100,
     result: input.result ?? null,
     error: input.error ?? null,
+    attempts: input.status === "failed" ? 2 : 1,
+    maxAttempts: input.type === "media_finalize" ? 90 : 3,
+    startedAt: nowIso(),
+    completedAt: input.status === "queued" || input.status === "running" ? null : nowIso(),
     createdAt: nowIso(),
     updatedAt: nowIso(),
   };