Record the pools that were checked and rejected

Three audio-Scripture sources were investigated this tick and none is
shippable. Writing down WHY, beside the unchecked-pool list, so the
next agent does not spend a tick rediscovering it — each was reachable
and doctrinally sound, and the reason is always coverage or the join
key, never suspicion.

AudioTreasure publishes 9 languages and every one is major; zero
overlap with the gap. Davar is a ministry site rather than a
catalogue, with no per-language page and so no URL a worker could be
sent to. Talking Bibles is the interesting one: 177 real audio Bibles,
open robots.txt, but the player keys languages by an internal numeric
id and publishes no ISO code, so a join could only be by NAME — which
this map refuses, because names collide across unrelated languages. It
turned out not to matter: of the 81 whose names match a language we
carry, ZERO are in the gap, so even a perfect ISO join would have
added no coverage.

GRN is the contrast worth keeping next to them — equally name-shy at
first glance, but 5fish resolves by ISO 639-3 directly, which is why
it is in and these are not.

plugin-designs/gospel-resources/scripts/build-people-group-pins.mjs

@@ -336,6 +336,22 @@ for (const [c, v] of Object.entries(codes)) {
 // to be distinguishable from "nobody looked".
 const SCANNED = 'ebible, arclight, door43, fcbh, scriptureearth, grn'
 const NOT_SCANNED = 'api_bible, dbl, progress_bible'
+
+// POOLS CONSIDERED AND REJECTED, with the measurement, so nobody spends another tick on
+// them. Each was reachable and doctrinally fine — the reason is always coverage or the
+// join key, never suspicion:
+//   - AudioTreasure  9 languages, every one major (Arabic, Cantonese, Hindi, Mandarin,
+//                    Polish, Punjabi, Tamil, Urdu). Zero overlap with the gap.
+//   - Talking Bibles 177 languages, real audio Bibles, open robots.txt. They publish NO
+//                    ISO code — the player keys languages by an internal numeric id — so a
+//                    join would have to be by NAME, which this map refuses because names
+//                    collide across unrelated languages. It did not matter in the end: of
+//                    the 81 whose names match a language we carry, ZERO are in the gap, so
+//                    even a perfect ISO join would add no coverage.
+//   - Davar Partners a ministry site, not a catalogue. No per-language page and therefore
+//                    no URL a worker could be sent to.
+// GRN was the opposite case and is worth the contrast: also name-shy at first glance, but
+// their 5fish site resolves by ISO 639-3 directly, which is why it is in and these are not.
 // SIGN LANGUAGES GET THEIR OWN PROVENANCE, because the generic list is actively
 // misleading for them. A Deaf group is not served by eBible (text), Door43 (text and
 // stories) or FCBH audio, so listing those as "checked" implies a search that was never