chore(registry): regenerate source hashes after merge of main (#357)

Merging main brought in the new registry-verify gate + REGISTRY.a2ml.
This branch changed a2ml/, k9-svc/, and hypatia-rules/, so their
content-addressed source_hash entries were stale post-merge. Regenerated
deterministically via scripts/build-registry.sh; 'build-registry.sh --check'
now exits clean. Also resolved the HYP-S006 ID collision (main's
registry-staleness keeps S006; this branch's profile-drift-detector
renumbered to HYP-S007).

https://claude.ai/code/session_01XZhw6Fq27eoeyEB4LR3a2c

Author: claude

.machine_readable/REGISTRY.a2ml

@@ -32,7 +32,7 @@ name = "A2ML — Attested Markup Language"
 stream = "foundation"
 home = "a2ml/"
 canonical_doc = "a2ml/README.adoc"
-source_hash = "sha256:b34ffe4d51c1715c4f2e51183d7a510865dc03e962fbeae121e3868fd88a718a"
+source_hash = "sha256:ffda43ed07bed095c7623d3c6a1d38c8f17a6b9e4eebaebe3bfde5aff62bcfb0"
 route = "the typed/verified machine-readable document format"
 
 [[spec]]
@@ -41,7 +41,7 @@ name = "K9 Self-Validating Components"
 stream = "foundation"
 home = "k9-svc/"
 canonical_doc = "k9-svc/README.adoc"
-source_hash = "sha256:eae3b6a0f4e2da1afcfddfecf7a5c173d6c0ac090923c63fe9c14806b5a3b11b"
+source_hash = "sha256:6a9c2065fc29abdaaeef08c3e551f21c7408afd3c9a7cee4ed3e73460db443ab"
 route = "self-validating components with embedded contracts + deploy logic"
 
 [[spec]]
@@ -266,7 +266,7 @@ name = "Standards Hypatia Rules"
 stream = "integration"
 home = "hypatia-rules/"
 canonical_doc = "hypatia-rules/README.adoc"
-source_hash = "sha256:707852684795e8474bc764473c36bc4d56fa139014ab3abbc0f550319637138c"
+source_hash = "sha256:a63e95c5e43ced2ee13c58014175da156c71ab731f01449e3a61b3e2f33bbe52"
 route = "the dogfooding rules that scan THIS repo (incl. drift detection)"
 
 [[spec]]