New language members: provenance, review, derives, satisfies, author, source
- provenance block: declare intent sources (regulation, design_decision, parent_spec, external_doc)
- review directive: mark verification boundaries (manual, auto, hybrid)
- derives/satisfies: spec-to-spec and spec-to-requirement edges
- author/source: who wrote it and what drove it
- Provenance-aware event semantics: runtime events trace back to intent
- Updated EBNF grammar, semantics, examples, and JSON-LD mapping
- Three new examples: regulated medical device, auto-verified service, compliance audit trail
- All primitives optional — Specks without provenance still compile fine
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