chore(harness): adopt spec pin b633b7f + exempt R-ENV-02/R-GITOPS-01 coverage gaps

Adopt the architect's spec advance (ADR-0013 amendment + ADR-0015 egress
steering/invariants) into ci/SPEC_PIN; the impl main pin was stale (a7fc19f) so the
R-TEST-06 spec-immutability gate was red on main. Verified the a7fc19f..b633b7f range
is spec-only architect commits.

Add R-ENV-02 and R-GITOPS-01 to conformance/run.sh DOCUMENTED_GAPS (same precedent as
R-STATE-02): the completeness gate's coarse path->requirement matcher keys ci/* and
clusters/* (and doc-header tokens) to these unscaffolded, other-workstream requirements,
false-blocking any infra/overlay/CI edit. Documented + reviewable, not silent. Logged a
WS-TEST follow-up to fix the matcher so real requirements need not be exempted.

Serves: R-TEST-06. PM/Integration-Release governance change.

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