Documented coordination decisions:
- Encoding fixtures already committed by CLOSED beads (bf-2ypn2, bf-84xr8, bf-3cwge)
- CI/CD templates already committed by CLOSED child beads (bf-4ygdw, bf-20v7h)
- No conflicts with open beads bf-512z1 (encoding) and bf-5o8cg (CI/CD)
- structtree_extraction.rs not found (never created)
- cargo check passes
Acceptance criteria: PASS
- All test and CI/CD work products handled based on open bead status
- Decisions documented in notes/bf-3y87u-coordination.md
- cargo check passes
- No force-push
