500db585

By: lcnbr <im@lcnbr.ch>

fit coil endpoints and annotate the soft triangle

Preserve continuous pattern geometry, expose coil endpoint controls, update drawing documentation and regression coverage, and add soft-diagram momentum arrows.

User request: can we add momentum arrows for p1 p2 and k on the soft-diagram in [@xbox-page-3.typ](file:///Users/lcnbr/dev/work/bern/gammaloop/main/crates/linnest/typst/examples/xbox-page-3.typ) ?

User request: can we rebase our stack off of current main, and then push this as a jj change id branch