docs/v1.9_RELEASE_NOTES.md, v1.9.1_HYBRID_FIX.md, v1.9.2_WIFI_RESILIENCE.md were internal working documents (incomplete checklists, dev notes). CHANGELOG.md already covers all versions — links removed, status updated to v1.9.3. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>