Version-only bump. Sits above v1.7.11-alpha which user has verified
runs the full Install Update pipeline end-to-end (check → download
→ install → auto-restart). Freshly-installed nodes from the 1.7.11
ISO will see 1.7.12 as their first OTA target.
Frontend tarball byte-identical to v1.7.11 (same sha).
Artefacts:
archipelago 247f65c2…54f40df9 40385472
archipelago-frontend-1.7.12-alpha.tar.gz 0644a436…54f58 76983846 (reused)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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