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## Why Expose PostgreSQL datastore latency within existing request traces so slow logical database operations can be identified without recording tenant data or query arguments. ## What - Add client spans around logical PostgreSQL operations across the database facade, search, audit, replica fencing, and command persistence - Use a dedicated `buzz_datastore` target and `db.system.name = "postgresql"` for filtering and backend classification - Exclude health-check database calls and scrub raw identifiers and errors from newly traced paths ## Risk Assessment Medium — this instruments frequently used datastore paths and increases trace volume when enabled, but does not change SQL execution or datastore behavior. Existing OpenTelemetry filtering controls export. ## References - Pre-push clippy and fast unit-test hooks passed Generated with Amp --------- Signed-off-by: David Grochowski <dgrochowski@squareup.com> Co-authored-by: Amp <amp@ampcode.com>