Operators can accept known-benign findings once and have Sencho filter
them out of scan drawers, comparison views, and other read surfaces.
Suppressions replicate from the control instance to every remote node.
* New cve_suppressions table with a COALESCE-based unique index so NULL
scope slots collide the way users expect
* Admin + paid-tier CRUD routes; writes are rejected on replicas
* Read-time filter enriches vulnerability details and compare payloads
without mutating stored counts
* Settings > Security panel for managing rules, per-CVE suppress action
in the scan drawer, dimmed rows with a shield-off indicator
* Vitest unit tests for the filter (glob, expiry, specificity) and
route tests (auth, tier, replica, UNIQUE conflict)
Anso