Add topo edge input for scaffold_topo_faces_and_beams or new api

### 📝 Description of the feature

It would be useful to specify specific topo edges for scaffold connection in addition to existing options.

(Cc @dkowollik, @ansutremel)

### 💡 Steps for implementing the feature

_No response_

### 🔗 Useful links and references

_No response_

Start by locating the scaffold_topo_faces_and_beams API and reviewing how its existing scaffold connection options are represented. Determine the intended way to supply specific topo edges, then check the relevant API tests and documentation. Done means callers can select explicit topo edges in addition to the existing options, with behavior covered by tests.

Written by the indexing model from the issue text.