S00-027: Document verified HTTPS npm registry connectivity

Changes: Add the bounded S00-027 connectivity record with owner confirmation, fresh registry responses, pinned libomemo.js artifact integrity and independent review handoff.
Validation: Both live metadata queries and pinned metadata query exited 0; HTTPS archive SHA512 matched registry SRI without executing scripts. make check exited 0 with 72 tests; whitespace and scope inspected. No crypto/backend acceptance or application build claimed.

Task: S00-027
Agent: auto-ci-cd-40ae46e8efe7
Role: ci-cd
Action: claim
Status: review

Task title: Restore approved npm registry connectivity for the OMEMO2 backend investigation

planning/stages/S00.md

@@ -31,7 +31,7 @@
 - [S00-024](../tasks/S00-024.md): Устранить прерывание: Restore access to the pinned Linux XMPP experiment toolchain — ci-cd; done.
 - [S00-025](../tasks/S00-025.md): Устранить прерывание: Устранить прерывание: Выбрать IndexedDB wrapper и migration policy — storage; blocked.
 - [S00-026](../tasks/S00-026.md): Provide approved access to the pinned Linux experiment artifacts — ci-cd; done.
-- [S00-027](../tasks/S00-027.md): Restore approved npm registry connectivity for the OMEMO2 backend investigation — ci-cd; todo.
+- [S00-027](../tasks/S00-027.md): Restore approved npm registry connectivity for the OMEMO2 backend investigation — ci-cd; review.
 - [S00-028](../tasks/S00-028.md): Repair conflicting Codex harness sandbox arguments — ci-cd; todo.
 - [S00-010](../tasks/S00-010.md): Gate: Профиль и проверка стека — qa; todo.