- Add tracing::instrument spans to executor (workflow.execute), host (workflow.start, event.publish, event.process) - Add otel feature flag to wfe-core and wfe crates - Add wfe/src/otel.rs helper for OTLP exporter initialization - Dependencies: tracing-opentelemetry, opentelemetry, opentelemetry_sdk, opentelemetry-otlp (all optional behind otel feature) - Step execution stays at info level, executor internals at debug
Workspace with 6 crates: wfe-core, wfe-sqlite, wfe-postgres, wfe-opensearch, wfe-valkey, and wfe (umbrella). Nextest profiles for default, integration, and CI. Docker compose for PostgreSQL, Valkey, and OpenSearch integration tests.
