When setting a slot to a bead from a different beads database
(e.g., setting an hq-* role bead on a gt-* agent bead), the command
now uses prefix-based routing via routes.jsonl to resolve the bead
in the correct database.
Previously, bd slot set only looked in the local database, failing
to find cross-db references like hq-polecat-role from rig beads.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>