Unified API migration#

The language version is 0.2; output Scene schemaVersion is 8. Removed parameters produce replacement diagnostics rather than permanent duplicate entry points.

Previous spelling	Unified spelling
`width=80, height=40`	`size=(80, 40)`
`width=80`	`size=(80, auto)`
Text `size=10pt`	`font_size=10pt`
`font`, `weight`, `italic`	`font_family`, `font_weight`, `font_style="italic"`
`classes`	`class="paper annotation"`
`stroke`, `stroke_width`	Closed objects: `border_color`, `border_width`; open lines: `line_color`, `line_width`
`dash`, `stroke_cap`, `stroke_join`	`border_dash/cap/join` or `line_dash/cap/join`
`outline(...)`	Object border/line parameters; reusable rules in `.lcss`
`marker_stroke`	`marker_border_color`
Bar `width`	`data_width`; polar angular width uses `angle_width`
`plot_area=(x,y,w,h)`	`plot_area=box(offset=(x,y), size=(w,h))`

Bare geometry now defaults to mm; bare typography and line widths default to pt. Numeric data is unchanged. Ordinary strings render $…$ math; use the r prefix for literal display.

scripts/migrate-language.mjs provides reviewable source migration. It renames parameters and inlines old outline presets; complex cross-module styles should be reorganized as component themes. Run validate, inspect and compare exports after migration.

Rust/WASM replace the Node compilation/rendering entry points. Python render/render_file, CLI commands and font fallback order retain their calling conventions; embedded DSL follows the new semantics. Historical benchmarks retain their original version and measurement context.