omena-testkit

omena-testkit owns shared Rust-side fixture primitives for omena-css tests. The first surface is the omena-fixture-v0 parser used by conformance and testkit migration work. Product crates can keep their own domain assertions, but they should consume this shared fixture grammar instead of redefining local fixture parsers.

This crate locks the common fixture grammar, promotion reporting path, the first scenario archetypes for boundary, transform execution, LSP requests, and shadow.omena(<verb>) introspection, plus the seed snapshot-governance policy for global-disable rejection, unreferenced snapshot rejection, hot-snapshot age audit, known-failure review policy, and the first property-based SCSS parser no-panic gate.

Broader WPT corpus automation remains a separate Axis A surface.