BIT-SEAWEEDFS-2026-72921 SeaweedFS: Filer JWT allowed_prefixes literal prefix match allows cross-tenant access to sibling paths

SeaweedFS is a distributed storage system. Prior to 4.24, the weed/server/filerserverhandlers.go allowedprefixes authorization check used strings.HasPrefix on raw path strings, so a filer JWT scoped to /tenant1 also authorized sibling paths such as /tenant1234, /tenant1-old, and /tenant1backup,...