S00-024: Approve restored Linux toolchain continuation checkpoint

Changes: Accept the bounded S00-024 restoration checkpoint, add independent QA evidence and handoff, and refresh successful probe runtime/cache paths.
Validation: Independently reran verify.py with official HTTPS checksum, Node 24.21.0/npm 11.19.0, fresh-cache locked npm ci and Stanza import; archive/input/installed-version/strict-config assertions, tasks.py validate and diff/scope/whitespace checks passed. Browser/WSS, interoperability and product readiness remain unverified.

Task: S00-024
Agent: auto-qa-e19cd93db255
Role: qa
Action: review
Status: done

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

state/handoffs/S00-024.md

@@ -23,3 +23,14 @@ this checkpoint. No browser/WSS/server/interoperability, detached signature,
 provenance/advisory or release readiness check was performed. No network/system
 configuration, TLS policy, shared contract, dependency graph or spec changed.
 Executor exits after submit; coordinator alone commits and launches next work.
+
+## Independent QA continuation note
+
+Reviewer auto-qa-e19cd93db255 independently repeated verify.py successfully;
+see state/evidence/S00-024-review.md. Current result.json points to
+/tmp/luma-S00-026-mil9mnes/node-v24.21.0-linux-x64/bin and its sibling npm-cache.
+Checksum, unchanged parent inputs, all eight installed versions and strict
+settings were independently checked. S00-024 approval accepts only this
+continuation checkpoint. Coordinator commits before a fresh S00-020 executor;
+S00-020/S00-003 acceptance and all browser/WSS/interoperability work remain.
+Temporary paths can expire; rerun the scoped probe when needed.