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Anso
6b728599c4
The 12 PilotMetrics counters (proxy_dials_failed, proxy_bridges_total, proxy_idle_closes, the pilot-tunnel counters, and the peer-to-central callback counters) live in a singleton holding scalar fields, so process restart wipes them. Operators investigating rotation- or dial-failure trends across a central restart lost the aggregate metric. Persist the snapshot under a pilot_metrics_counters JSON row on the existing system_state KV table. Hydrate via PilotMetrics.load() in bootstrap/startup.ts before any service that increments runs; final-flush in bootstrap/shutdown.ts before the SQLite handle closes. Between those boundaries a buffered flush mirrors the audit-log pattern: every 1 s or every 100 increments, whichever fires first. Hot increment path stays a single property write plus a pending-counter check. Defensive parse on the row: object check + numeric filter, so an operator hand-edit or schema drift across releases degrades to zero state with a warn rather than crashing boot. Schema additions back-fill missing keys with zero so a release that adds a counter does not need a migration. Closes F-R-4 from the mesh tracker.