Read behavior summary

GET /v1/behavior/summary

Return aggregate counts and effective duration for a 7, 30, or 90 day window.

Rows are built from business-surface events after excluding Memory and Settings administration. page.open is eligible for direct-interaction and feature-use counts; page.active contributes to effective duration without increasing the interaction count; navigation events are retained for audit but should not be counted again. Rows include the resolved module so clients can rank business features instead of displaying a generic Page Open bucket.