Package-level declarations

Per-site "open in desktop mode" preference, consumed by the browser. Callers pass a raw page url; the implementation derives the site key (eTLD+1, or the raw host when there is no registrable domain — IPs, localhost) internally, so call sites cannot disagree on the key.

Bulk teardown of stored site preferences, consumed by the fire button and single-tab burn. Callers pass raw hosts/domains; the implementation derives the site key (eTLD+1, or the raw host when there is no registrable domain) internally.