[BOBWORKS-XR]

Summary

• Add the approved 20 October 2026 00:00 UTC retirement notice and detailed FAQ.
• Distinguish the retiring in-app catalogue from the separate store, existing assets and normal MCP tools.
• Explain the offline clock-based cutoff and the limitations of older unupdated binaries.
• Preserve catalogue entries, package bytes, licences and historical downloads.

Checks

• tools/validate-downloads.py: 2 tests passed.
• tools/validate-media.py: 3 tests passed.
• Matched the date and boundary against the Hub native/frontend retirement implementation.
• Documentation only; not a claim that a unified Hub release has been published.