Two regressions reported in #1336:
1. spoolMatchesQuery did not include spool.id in the predicate, so
typing a numeric Spoolman ID into the Assign Spool dialog or the
Inventory page search returned no matches. Predicate now also
tests String(spool.id).includes(q).
2. The Unassign button in the spool edit modal was permanently
disabled for Spoolman-mode spools. The modal only ever queried
the legacy spool_assignments table (keyed by spool_id), but in
Spoolman mode the assignment lives in spoolman_slot_assignments
(keyed by spoolman_spool_id). Both the lookup query and the
unassign mutation now branch on the spoolmanMode prop and call
the Spoolman-flavored endpoints.