Brummel
985e129129
Exercise the construction op-script service (#157) purely as a downstream consumer authoring topology as data: discover-then-author an SMA-crossover bias, author-with-`--unwired`, and 15 error-ergonomics fixtures. Public interface only (the C24 ledger + the CLI's own output); no implementation source read. Confirmed working: discover→author round-trip, the `--unwired` by-identifier authoring aid, eager per-op diagnostics. Surfaced one bug + frictions, all reproduced and filed forward: - #161 (bug): `graph build` accepts a dataflow cycle — DAG invariant 5 unenforced; reproduced directly before filing. - #162: construction error/bind ergonomics (raw-index finalize, Debug-struct bind-mismatch, undiscoverable typed-Scalar bind). - #28: no CLI consumer for the emitted #155 blueprint (round-trip dead-ends). - #159: construction surface undiscoverable from the CLI usage/help. FINDINGS.md carries the full report + the triage table. The two 1.4 MB self-contained viewer HTML dumps from the round-trip check are dropped as bloat (the byte-identical result is recorded in FINDINGS).