S00-024: Verify restored pinned Linux XMPP environment access

Changes: Add the S00-024 continuation checkpoint, refresh verified runtime/cache paths, and replace the blocked handoff with QA and S00-020 restart instructions.
Validation: Existing verify.py passed official HTTPS/checksum retrieval, Node 24.21.0/npm 11.19.0, fresh-cache locked npm ci and Stanza import. Independent archive/input/version/config assertions, tasks.py validate and diff/scope/whitespace checks passed. Browser/WSS and product readiness remain unverified.

Task: S00-024
Agent: auto-ci-cd-49907d48a6d1
Role: ci-cd
Action: claim
Status: review

Task title: Устранить прерывание: Restore access to the pinned Linux XMPP experiment toolchain

planning/stages/S00.md

@@ -28,7 +28,7 @@
 - [S00-021](../tasks/S00-021.md): Устранить прерывание: Проверить browser OMEMO backend — crypto; done.
 - [S00-022](../tasks/S00-022.md): Confirm or source a verified browser/WASM-capable OMEMO2 backend for the Web client endpoint — crypto; blocked.
 - [S00-023](../tasks/S00-023.md): Устранить прерывание: Выбрать IndexedDB wrapper и migration policy — storage; blocked.
-- [S00-024](../tasks/S00-024.md): Устранить прерывание: Restore access to the pinned Linux XMPP experiment toolchain — ci-cd; todo.
+- [S00-024](../tasks/S00-024.md): Устранить прерывание: Restore access to the pinned Linux XMPP experiment toolchain — ci-cd; review.
 - [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.