feat: add brand asset cleanup worker and related functionality

- Implemented a new BrandAssetCleanupWorker to handle the cleanup of brand-related assets after a brand is deleted.
- Added SQL queries for cleaning up articles, keywords, questions, competitors, and monitoring data associated with a brand.
- Introduced a new API endpoint to delete publish records.
- Updated the router to include the new delete publish record endpoint.
- Added tests for the BrandAssetCleanupWorker to ensure proper functionality.
- Created migration scripts to support soft deletion of publish records and to add the brand asset cleanup scheduler job.

server/internal/tenant/app/article_service.go

@@ -122,6 +122,7 @@ const articlePublishStatusAggregateJoin = `
 				FROM publish_records pr
 				WHERE pr.tenant_id = a.tenant_id
 				  AND pr.article_id = a.id
+				  AND pr.deleted_at IS NULL
 				ORDER BY
 					COALESCE(pr.target_type, 'platform_account'),
 					COALESCE(pr.platform_account_id, pr.target_connection_id),