Unit settings-allows - research & requirements

User job

Find and manage "sites I allowed or silenced" as one concept; avoid Agents only unless they mean it.

Friction

Always allow and Remembered Keeps look like two products. Agents only lacks "almost nobody needs this".

Requirements

Must: One Advanced card "Sites I've allowed or silenced" with Allowed / Silenced (Keeps) sections; shared Find; Agents only + "Almost nobody needs this"; Resume asks kept.

Must not: Change allow/keep storage semantics.