Edit Test bench equipment (unused)

Phase 1 preview — pages render fixture data only; no changes are saved.
Global method: Straight line. Legacy chooses one depreciation method for every schedule (Settings → General). Reports calculate it as implemented.

Schedule

Must be unique.
months
Whole months, up to 3600.
The value it stops depreciating at. A percentage must be 0–100.
Cancel Saving is not available in Phase 1 — the form is a UI preview.