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The worker0-k8s0 bug: when labd restarts, the in-memory installed map is lost. The next DHCP/PXE re-discovery for that MAC ran an upsert that wrote status="discovered", silently downgrading the DB record from "online" or "offline" and erasing the machine's known hostname/role identity from the CLI view. - server.ts: drop status="discovered" from the upsert update branch so re-discovery cannot downgrade an installed record. - routes/bastions.ts (/api/machines): when the DB knows a real hostname+role for a MAC currently only in live.discovered, promote it back to live.installed so the CLI sees the right state. Also reordered the live-vs-DB fallback so DB online/offline maps to live.installed and the discovered branch is the else. - tests: 3 new vitest cases covering promotion, fresh-discovery, and unknown-MAC fallback. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>