K8: record blocked owner review and release evidence

docs/linuxcnc-web-wasm-remediation-evidence-roundup.md

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+# Remediation Evidence Roundup
+
+`coverage/remediation-evidence-roundup.report.json` is the K8-REL-14
+consolidation of the six remediation reports K8-REL-08 through K8-REL-13.  It
+verifies each report's self-hash and context, preserves the six blocker IDs,
+and checks that no remediation artifact promoted entries, generated official
+goldens, resolved resources by fiat, pinned an unreviewed browser matrix or
+approved an implementation license.
+
+The roundup is complete as an audit, but its `roundup_status` remains
+`blocked_pending_owner_actions`.  The release conclusion is still
+`blocked_not_release_candidate` with `release_action: STOP_RELEASE`.
+
+Remaining transitions require owner review and, where locked inputs change, a
+new context followed by closure, audit and gate regeneration.  The roundup
+does not mutate prior evidence or overwrite the context lock.
+
+Regenerate it with:
+
+```bash
+python3 scripts/generate_remediation_evidence_roundup.py
+```