Partial Check-ins Now Complete Reliably for Shared Assets

If you returned every asset on a booking through the Explicit Check-in scanner but the booking still showed as Ongoing or Overdue, that's fixed.

The problem only showed up when an asset belonged to more than one overlapping booking. Completion used to be decided from each asset's global status, but a physical item you'd just returned could flip back to Checked out the moment a later booking picked it up — so the booking you were finishing never matched the "all returned" condition and refused to close. The partial-return path had a related counting issue, where the Remaining total only subtracted the assets scanned in the current session and ignored anything you'd checked in earlier.

A booking now decides completion from its own partial check-in records — the same per-booking source of truth the progress bar already uses. It completes when every asset that hasn't yet been recorded for this booking is covered, independent of what any other booking has done with the same item. The Remaining count now subtracts everything recorded across all sessions, so it always reflects what's genuinely still out.

No action is needed — the fix applies automatically. If a booking got stuck open because of this, completing its remaining check-in now closes it as expected.