The pending ladder in the prober: unnamed releases probed cheapest first, signatures learned, the named moved into the catalog

pending_ladder.ts claims the oldest waiting pending releases' next target
(par2, archive, lone, 7z-tail in that order) as at least PENDING_SHARE of each
claim; a usable name (the largest named file of a par2 set or a listing, or a
lone file's yEnc name, neither packaging nor random) hands the release to the
namer, no name the next target or the end of the climb; climbs count on
pending_signatures per (tool, group, poster) and (tool, group), and a signature
with 100 climbs and 0.5% named or fewer is dropped: its waiting releases are
discarded without a probe, the rules' sample excepted. pending_namer.ts reads
a named release's articles again from the corpus or by XOVER and writes it to
the catalog under the pending key (source weak-stem, the name as inner name)
with its chunk and candidates. Migration 6400; config PENDING_*.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

lib/probe/index.ts

@@ -1 +1 @@
-export { inspect, innerName, MAX_NAMES, PROBE_VERSION, type Inspection } from './inspect.js'
+export { inspect, innerName, usableName, MAX_NAMES, PROBE_VERSION, type Inspection } from './inspect.js'