feat: add superderive stepwise derivation figures

A third sibling toolkit: rewrite steps, justification rails, cancel/substitute highlights, and lint-on-warning builds.
2026-08-17 10:05:03 +08:00
commit 9f635d358b
22 changed files with 724 additions and 0 deletions
@@ -0,0 +1,7 @@
+build/
+*.aux
+*.log
+*.out
+*.fls
+*.fdb_latexmk
+*.synctex.gz