- Replace global Save button with per-row ✓ (save) / ✗ (cancel) buttons
that appear only when a field is changed
- All fields shown as editable inputs; server rejects unknown fields
with a clear error message instead of hiding them in the UI
- Monospace font and 1.5px border for all value inputs
- Server-side name→area/index lookup for fields sent without area
- SAA DMI card: same per-row UX, confirm dialog kept (requires reboot)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>