T-H3 — Bounding-box dimensions in real units

[lightningpixel]

Epic: Epic H — Real-world scale & measurement tools
Priority: P2

Context

Surfaces the calibrated scale (T-H1) directly in the diagnostic panel (T-A2) instead of leaving it only accessible through the measurement tool.

Scope

• Show real width/height/depth in the inspection panel (T-A2) once the asset is calibrated (T-H1).

Acceptance criteria

A calibrated asset's inspect_mesh report shows its dimensions in cm/mm instead of arbitrary units.

Depends on: T-A2, T-H1

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From ROADMAP_0.5.md.