fix(data): 增加全局保存失败保护

apps/web/lib/optimistic-persistence.test.ts

@@ -0,0 +1,53 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import { saveWithOptimisticRollback } from './optimistic-persistence';
+
+test('rolls back optimistic state when the save fails and state is unchanged', async () => {
+  const previous = [{ id: 'old' }];
+  const optimistic = [{ id: 'new' }];
+  let current = optimistic;
+  let rolledBack = false;
+
+  await assert.rejects(
+    () => saveWithOptimisticRollback({
+      save: async () => {
+        throw new Error('save failed');
+      },
+      expected: optimistic,
+      getCurrent: () => current,
+      rollback: () => {
+        rolledBack = true;
+        current = previous;
+      },
+    }),
+    /save failed/,
+  );
+
+  assert.equal(rolledBack, true);
+  assert.equal(current, previous);
+});
+
+test('does not roll back a newer optimistic state when an older save fails', async () => {
+  const optimistic = [{ id: 'new' }];
+  const newer = [{ id: 'newer' }];
+  let current = newer;
+  let rolledBack = false;
+
+  await assert.rejects(
+    () => saveWithOptimisticRollback({
+      save: async () => {
+        throw new Error('save failed');
+      },
+      expected: optimistic,
+      getCurrent: () => current,
+      rollback: () => {
+        rolledBack = true;
+      },
+    }),
+    /save failed/,
+  );
+
+  assert.equal(rolledBack, false);
+  assert.equal(current, newer);
+});