Plan 008 is complete and moves to completed/. The two findings worth
carrying forward are that a new table needs one schema file rather than
two (and a datamap entry, which is a gate nobody remembers), and that
excluding a path has to reach every place that counts what is in the
library — the soft scan's disk-vs-database comparison above all, which
would otherwise have rescanned the whole library on every launch with
nothing failing anywhere.
