fix(persistence): serialize autosave generations before queue effects

Track settings input generations so an older asynchronous secret save cannot mark a newer value durable. Commit queue snapshots before cancellation, cleanup, or pause effects so SQLite failures leave runtime processes and files unchanged.

src/main/domain/persistence-commit.ts

@@ -3,3 +3,17 @@ export function persistStateChange<T>(current: T, createNext: (current: T) => T,
     persist(next);
     return next;
 }
+
+export async function commitQueueMutation<T>(
+    current: T,
+    createNext: (current: T) => T,
+    persist: (next: T) => void,
+    apply: (next: T) => void,
+    effects: () => Promise<void>,
+): Promise<T> {
+    const next = createNext(current);
+    persist(next);
+    apply(next);
+    await effects();
+    return next;
+}