feat(shapeops): face and edge history from booleans

and_with_history / or_with_history return, with the solid, the operand face
each result face is a region of (and whether it is that face untouched) and,
for each result edge, the operand edge it is (a piece of) or the pair of
operand faces whose intersection made it. Faces and edges are recorded where
they are created (face division, intersection edges, split edges, edges
rebuilt on a moved vertex), resolved to operand terms at creation, so the
passes folding in extra shells compose without bookkeeping. and / or wrap
the same pass and drop the history; a missing record never fails them.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J53sR6gEaVt56soFDpTck8

vendor/README.md

@@ -19,6 +19,14 @@ Changes:
   boolean's faces came out in a different order on every run).
 - `lib.rs`: `tr!` reports where an operation gives up when `SHAPEOPS_TRACE` is set; compiler
   warnings no longer fail the build.
+- Face and edge history (`transversal/history.rs`, new): `and_with_history` / `or_with_history`
+  also return, for each face of the result (in `face_iter` order), the operand face it is a
+  region of and whether it is that face unchanged, and for each edge (distinct edges in order
+  of first use along the faces) the operand edge it is (a piece of) or the two operand faces
+  whose intersection made it. The code that creates faces and edges records them as it goes:
+  `divide_face` (face pieces), `loops_store` (intersection edges, split edges, edges rebuilt on
+  a moved vertex), across the passes that fold in the operands' extra shells. `and` / `or` are
+  wrappers that drop the history.
 
 ## truck-stepio 0.3.0 (Apache-2.0, © RICOS Co. Ltd., https://github.com/ricosjp/truck)