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22fd5e8601
The board and runbook had grown by append across eight work packages, so they read in the order the work was done rather than the order a node progresses. This is the coherence pass; it adds no new instrumentation. - Dashboard: 52 panels regrouped from two rows into nine that follow the fresh-start sequence — bootstrap, peer supply, sync state, acquire and SHAMap fetch, job queue, quorum and publish, terminal blockers, then back-fill and spans collapsed since they answer conditional questions. Layout only: no title, query or description changed. - Runbook: the flat step list becomes a decision tree branching on the observed symptom, with the amendment-block check first because it is terminal. Each branch names the panels, what healthy and unhealthy look like, and what to conclude. The existing steps are kept as the detail bodies. - Reference table: every signal name re-checked against the code and every named panel against the board; four stale panel references fixed. - Validation: every signal is now either asserted or covered by a note explaining why a five-node local cluster cannot produce it. Also fixes the write-latency signal, which was inert on a real node: the store duration was only recorded on the database-import path, while the two production store implementations did not time themselves, so an ordinary node reported a write count with no latency. Both now time the backend write, which is the disk work this signal exists to expose. Without it the "existing database syncs slower than a fresh one" diagnosis had no primary signal. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>