Address-level population exclusion for direct mail pipelines

Pipeline populations now support address-level exclusion — suppressing everyone at a given address, not just specific individuals.

Previously, exclusion cohorts operated at the individual level only. For direct mail use cases, this meant there was no way to prevent other residents at a previously-mailed address from appearing in a new deployment. The new Exclude at address level control solves this: any cohorts you add will suppress all individuals who share an address with anyone in those cohorts.

The existing exclusion behavior is unchanged and now labeled Exclude at individual level for clarity. Both controls are available under the Need to exclude/suppress? disclosure in the Pipeline population settings, and via the exclusion_address_level_cohort_ids field on the Scopes API. See population exclusion for full details.