feat(relay): add OpenTelemetry tracing, keep Prometheus metrics#1398

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wpfleger96 merged 6 commits into

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duncan/otel-migration

Jul 1, 2026

Commits on Jun 30, 2026

feat(relay): migrate telemetry to OpenTelemetry with OTLP and Prometheus export

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fix(relay): address Thufir review pass 1 — span topology, resource identity, metrics port bind

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fix(telemetry): honor OTEL_SERVICE_NAME explicitly in service_resource

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refactor(relay): revert OTEL metrics to metrics-rs + Prometheus scrape, keep OTLP tracing

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Commits on Jul 1, 2026

fix(relay): address Wren review pass — pre-subscriber warn, unused dep, telemetry tests, db pool max

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test(relay): pin ExporterBuildFailed mapping via classify_exporter_result helper

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