The Overview (current source) and Security (no source filter) analyses of
the same sheet overwrote each other's single cache slot, so every Client
Info visit recomputed both. Keep up to three source-filter entries per
sheet and cache the Security view and its sorted groups by identity.
Align tests with Michael's base: DB Structure cards may use the shared
--tile-radius token, and the Client Info action role covers the HTML
Security Export button.