Fix TypeScript error in data-objectstack package

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

packages/data-objectstack/src/index.ts

@@ -174,7 +174,7 @@ export class ObjectStackAdapter<T = unknown> implements DataSource<T> {
           return await this.client.data.createMany<T>(resource, data);
 
         case 'delete': {
-          const ids = data.map(item => (item as Record<string, unknown>).id).filter(Boolean);
+          const ids = data.map(item => (item as Record<string, unknown>).id).filter(Boolean) as string[];
 
           if (ids.length === 0) {
             // Track which items are missing IDs