* fix(mobile): clamp out of range datetimes so timeline queries cannot crash
* replace the per column converters with a clamping custom type
* heal each table in one statement, rename the clamp type, read dates as stored
* one medium test for the clamp, drop the dart side bounds, private clamp type
* feat(mobile): stack edited photos over the original on upload
* stack through the asset service and give the live photo still its task metadata
* add plain photo stacking tests and the 2x2 edit detection matrix
* chore(mobile): static Store to unify and streamline reactivity
* Add tests of caching and new stores
* Don't instantiate PeopleDbRepository
* Slight DB rename and fix throwing store methods
