LaTeX: a "[" after a line break or at the start of a list item stays text

[webdevtodayjason]

A list item whose text starts with "[" (for example "[x] Buy milk") exported as \item [x] Buy milk. LaTeX, and WordCraft's own LaTeX import, read "[x]" as the item's label, so the bullet became "x" and the brackets were lost. Text that starts with "[" after a line break exported as \\ followed by [1] b, which LaTeX reads as the line break's optional spacing argument: pdfLaTeX stops with "Illegal unit of measure" ("Missing number" for "[x]") and the bracketed text disappears.

escape_text now writes such a bracket as {[} when nothing visible comes before it on the line. Brackets after text are unchanged.

leading_brackets_stay_text fails on main and passes with the fix. cargo test -p wordcraft-formats, cargo fmt --all -- --check, cargo clippy --workspace --all-targets -- -D warnings, and cargo xtask assets, layers and wasm pass. cargo xtask ci stops on three wordcraft-layout tests (deleted_text_adds_no_line_break_opportunity_without_markup, hidden_text_adds_no_line_break_opportunity_when_not_shown, tight_wrap_follows_an_ellipse) that fail the same way on unchanged main.

The first commit adds my entry to contributors/people.toml.

[echelon]

Thanks for the contribution, @webdevtodayjason! This has landed in main. If you haven't already, come join us on Discord: https://discord.gg/artcraft