ADR-240 — AGNTCY identity, OASF export, observability, CASA compiler

Merge marker for PR #155 — not an npm version release (metaharness remains at 0.4.2 on npm; the new @metaharness/agntcy package has not been published).

Full consolidated release notes: https://gist.github.com/ruvnet/c6d197dedc27acbec7c1f0ed98518f17

See it illustrated: ruflo × AGNTCY — an animated walkthrough

ADR-240 merged: AGNTCY identity, OASF export, observability, and a CASA intent compiler — the build-time half of the AGNTCY/Outshift integration. Companion: ruvnet/ruflo PR #2880 (ADR-380, runtime half).

Live-tested against a real local AGNTCY Directory server (push/publish/lookup). Found and filed a real upstream Directory validator bug (agntcy/dir#1943) plus two SLIM packaging bugs (agntcy/slim#1916, jhugman/uniffi-bindgen-react-native#422) — see the gist for details, including three rounds of real CI fixes landed getting this PR green.

Update: PR #157 found the real root cause of the agntcy/dir#1943 finding (a stale schema_version in our own pushed records, not an upstream bug) and shipped a full, real OASF skill taxonomy (364 leaves) — see the gist's follow-up section. PR #158 adds a runnable end-to-end example (packages/agntcy/examples/showcase-publish.mjs) that produced every number in the linked artifact above.