v0.2.0

[0.2.0] – 2026-02-25

Added

• Tabbed help modal (Getting started, Visual editor, Shortcuts).
• Single "New document" modal: choose Visual, Parametric, or Formula; for Visual, blank or template picker.

Changed

• Header uses icon-only logo (no wordmark text).
• Background calibration uses app units (mm/cm/in from Settings).
• Right pieces panel is scrollable; "Save to repository" moved into sidebar.

Fixed

• App layout constrained to viewport height (canvas no longer overflows).

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