Add a distance / measurement tool for arbitrary points and objects

[jpsimmons]

VectorStyler provides excellent numeric transforms and alignment tools, but it lacks a basic geometric primitive: direct distance measurement.

There is currently no way to select two arbitrary points (or edges, anchors, or object references) and read the distance between them. This forces users into indirect workflows (duplicate-and-align, helper objects, transform subtraction), which are error-prone and unnecessary given VS’s internal precision.

This limitation makes VectorStyler difficult to use for:
• timelines and Gantt charts
• diagrams and charts
• technical illustrations
• repeatable, metric layouts

Historically, this exact issue existed in early Illustrator releases and was corrected decades ago when users needed numeric invariants rather than visual heuristics.

Requested functionality (minimal):
• A simple “Measure” tool (or mode) that:
• lets the user click two points (anchors, edges, or arbitrary locations)
• reports the distance (ΔX, ΔY, and Euclidean distance)
• copies these values to the Transform->Move default values
• is independent of snapping and alignment state

This would not replace snapping or alignment — it would complement them by exposing the underlying geometry already present in VectorStyler.

Given VS’s strong numeric infrastructure, this appears to be a UI exposure issue rather than a technical limitation.

[VectorStyler]

@jpsimmons The Variable Values panel can be used to define number variables from various object measures. The variable value will be linked to the object and updated as the object changes.