fix: pass sorted display sets to hanging protocol for deterministic viewport order
The `applyHangingProtocol` function already sorts display sets by modality
priority and series number into `sortedDisplaySets`, but the unsorted
`displaySets` array was being passed to `hangingProtocolService.run()`.
This caused non-deterministic viewport ordering across page loads because
`displaySetService.getActiveDisplaySets()` returns display sets in creation
order, which depends on asynchronous network responses.
Made-with: Cursor
Pedro Köhler
68b10d365a