Phase 5: KubeVirt + CDI IaaS proof (R-PLAT-03/04, R-STATE-01, R-NET-01)

- platform/kubevirt: pinned KubeVirt v1.9.0 + CDI v1.66.0 operators (remote bases);
  KubeVirt/CDI CRs tuned for Longhorn; useEmulation=true (prefer real KVM, emulate fallback).
- Controllers/configs split (F-MON1): CRs + ServiceMonitors + alerts via platform-config.
- Observability: ServiceMonitors, KubeVirt platform-health alerts (R-OBS-04), VM dashboard.
- catalog/vm-demo.yaml (kind: vm) + rendered VirtualMachine/DataVolume fixture.
- Conformance: vm-lifecycle (R-PLAT-03/04), vm-data-survival (R-STATE-01, L3),
  vm-default-deny (R-NET-01) — self-skipping until KubeVirt+longhorn exist.
- ci/SPEC_PIN: adopt accepted spec b633b7f (ADR-0015 egress work already merged).
- conformance/run.sh: document R-ENV-02/R-GITOPS-01 coverage gaps (WS-GITOPS/INFRA-owned).

Co-Authored-By: Claude Opus 4.8 <[email protected]>

ci/SPEC_PIN

@@ -3,4 +3,4 @@
 # System Architect; each legitimate spec advance is adopted here by bumping this pin
 # in a reviewed change. CI (ci/spec-immutability.sh) fails if the spec repo is dirty
 # or its HEAD != this pin — catching any unauthorized/unadopted spec modification.
-a7fc19fad57c70e5c7b142afa142ac16e8b13091
+b633b7fb089ecd9c51a0056a3082f8dd638cd8cf