[Task]: Cross-platform ordered state/event conformance for app commands and host authorities

[enricopiovesan]

Summary

Extend scripts/ci/embedder_conformance/ with fixtures where the same app manifest and command sequence (permission → capture → recorded → analyze → results|failed) must produce identical ordered state_changed, host_connector_* and capability_* events on every published embedder, including timeout, cancel, denied and undeclared-terminal paths.

Governing spec

specs/140-host-authority-wit-adapters/spec.md (Approved on merge of the governance PR); docs/adr/0076-target-neutral-host-authorities-wit-adapters.md; Decision 97; Specs 057, 529, 139

Why

This is the evidence for 'same commands, same ordered state/events' on web, macOS and every other target.

Depends on

#1496, #1498, #1500, #1501 (each embedder joins as it reaches parity); #1481 for web event ordering

Blocked by

Blocked on the Spec 140 / ADR-0076 governance PR landing on main (needs-spec until then; flip to spec-complete/Ready when merged).

Definition of done

• Fixture manifest + golden ordered event logs
• Runs against web + swift first; kotlin/.NET added as they land
• Failures name the diverging event index

Validation

• bash scripts/ci/embedder_conformance/run.sh (or successor) green on all published embedders

[enricopiovesan]

Spec 140 / ADR-0076 merged to main via #1506. Removed needs-spec, added spec-complete. Dependency order still applies (see Depends on).