Sub-ticket of PLUTO-221 Logging-hardening: clientError:global-error rows persist with EMPTY detail (no digest/errorName/message/route) — un-diagnosable from appEvents alone. Capture digest+message+route at the global-error boundary so future global-error volume is triageable. Low-pri; only escalate if global-error volume rises (currently sparse/benign: 2-4/day transient). · pluto