Add network-ai backup fixed source tag and package references

[cookesan]

Adds network-ai backup fixed source tag and package references to GHSA-6x2m-p4xp-wg22.

Audit refresh, July 8, 2026:

• Confirmed the live PR is open, ready for review, merge-clean, and the visible advisory check is green.
• Rechecked the merge-base diff: exactly one advisory JSON file changes (advisories/github-reviewed/2026/06/GHSA-6x2m-p4xp-wg22/GHSA-6x2m-p4xp-wg22.json), JSON parses, git diff --check passes, and the exact-head worktree is clean.
• Revalidated the added public references and package-version evidence in the diff; all resolve through their source site or registry.

[cookesan]

Revalidated July 8, 2026: this remains scoped to adding the Network-AI v5.12.2 source tag reference for GHSA-6x2m-p4xp-wg22. The npm registry version, upstream source tag, release, and existing fix commit resolve; affected range, severity, and advisory metadata fields remain unchanged. Local checks passed with a single advisory JSON file changed, JSON parsing, git diff --check HEAD^..HEAD, and a clean worktree.