The Excavator design dialog

The dialog is the Slope-IQ design dialog, opened in Excavator context. Differences vs. Ditching:

• Est. Passes badge is hidden. Excavator dig is single-pass; estimated passes is meaningless.
• The grade screen for Excavator gets the achieved-grade overlay, while the design dialog itself looks the same.

Everything else is the same:

• Three modes: Best-Fit, Guided, Freeform.
• Same parameter cards: Depth Offset, Min Grade, Bottom Width, Side Slope, Min Depth, Max Depth.
• Same Outlet toggle.
• Same tap-to-edit on every value.
• DEPTH OFFSET range up to ±360″ / ±915 cm — useful when an excavator has to cut 20+ ft of overburden.
• MAX DEPTH up to 120″ — same reason.

After Implement, the calibration and Auto-Nudge prompts skip the Auto-Nudge step (excavator is single-pass) but still prompt for benchmark calibration.