nonisolated fixes

Update GRDB to 7.6.0

Remove Foreign Key support

Write all new/updated records with deferred foreign keys writer

Write deferred records without foreign key checks to avoid conflicts

Migrate first

Add migration checks to ensure all new default values get pushed

Start the engine on a Task

Add Privacy manifest

Merge pull request #8 from haIIux/hallux/feat/batch-create

feat: adds batch create function

Single write

Shift how HRecord does CloudKit updates

Fix syncing #2

Fix syncing issue