fix: Remote Note Cleaning will delete notes embedded in a page (#16408)

* feat: preserve number of pages referencing the note

* chore: delete pages on account delete

* fix: notes on the pages are removed by CleanRemoteNotes

* test: add the simplest test for page embedded notes

* fix: section block is not considered

* fix: section block is not considered in migration

* chore: remove comments from columns

* revert unnecessary change

* add pageCount to webhook test

* fix type error on backend

packages/backend/src/queue/processors/CleanRemoteNotesProcessorService.ts

@@ -82,6 +82,7 @@ export class CleanRemoteNotesProcessorService {
 		const removalCriteria = [
 			'note."id" < :newestLimit',
 			'note."clippedCount" = 0',
+			'note."pageCount" = 0',
 			'note."userHost" IS NOT NULL',
 			'NOT EXISTS (SELECT 1 FROM user_note_pining WHERE "noteId" = note."id")',
 			'NOT EXISTS (SELECT 1 FROM note_favorite WHERE "noteId" = note."id")',