Reference, signal, and footnote-label families join the tables

references.json: 20 entries - supra/ibid token (one pattern, four
modules), both pure-reference dialects with the ref_pin composition as
defs, inline references, note references, signals (prefix x2, source,
aggressive, citation), history, editorial brackets, link attachment,
both short-form dialects (toa's [^]] respelled [^\]] - JS parses the
original as an empty class; compiled-identical in Python), sentence
and conjunction boundaries. footnote-labels.json: the engine's seven
core.py label grammars, with adapters.py's inline copy named in
provenance. 124 vectors green in both runtimes; discriminating pairs
asserted per dialect sibling - including the corrected pure-ref pair
(DOLA subsection splitter-only vs Oakes-ibid toa-only; the r 11.10
string matches neither lineage and is kept as a shared negative).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012AgUm5EcRKbT3duVFMbrQD