Four more gates:post reds, hidden until a failed gate printed why

- research-map.vue's openPacket read and wrote _packetBusy, a name 8ab3dc0f5 replaced with the
  reactive packetBusy ref. Reading an undeclared name throws, so the packet export threw a
  ReferenceError on every click, in doxa-research-map and in research-map-plus-grid, the production
  map that compiles it. It uses packetBusy.value now (check:no-free-identifiers).
- check:list-prop-unit and check:optional-t-equivalence read every entry of library/i18n/locales as
  a locale, and the folder has held a README.md since bba33e783. They read locale FOLDERS now.
- people-groups-grid's regions-look instance previewed two props (filters-toggle, backdrop) of a grid
  merge that is not on development, so the page showed nothing different and
  check:instance-config-keys failed. It returns with that merge.

internal/check-list-prop-unit.mjs

@@ -83,7 +83,8 @@ check('an unknown list -> empty, not a crash', L.listLabel('project-9999', tFrom
   }
   check('the English catalogue matches the registry, word for word', bad, []) }
 { const missing = []
-  for (const lc of readdirSync(join(ROOT, 'library/i18n/locales'))) {
+  // Locale FOLDERS only: the folder also holds a README.md, which is not a locale.
+  for (const lc of readdirSync(join(ROOT, 'library/i18n/locales'), { withFileTypes: true }).filter((d) => d.isDirectory()).map((d) => d.name)) {
     const c = cat(lc)
     for (const l of L.peopleGroupLists()) for (const f of ['label', 'definition']) if (!c[l.id]?.[f]) missing.push(`${lc}:${l.id}.${f}`)
   }

internal/check-optional-t-equivalence.mjs

@@ -300,7 +300,9 @@ for (const [file, helper, fallbackFrag] of SITES) {
   const used = [...new Set([...literal, ...catIds])]
   ok(used.length > literal.length,
     `all-people-groups: ${used.length} keys verified = ${literal.length} literal + ${catIds.length} reached only through tr(cat.id)`)
-  const locales = readdirSync(new URL('../library/i18n/locales', import.meta.url))
+  // Locale FOLDERS only: the folder also holds a README.md (bba33e783), which is not a locale.
+  const locales = readdirSync(new URL('../library/i18n/locales', import.meta.url), { withFileTypes: true })
+    .filter((d) => d.isDirectory()).map((d) => d.name)
   const gaps = []
   for (const k of used) for (const loc of locales) {
     let v

plugin-designs/doxa-research-map/research-map.vue

@@ -1536,8 +1536,8 @@ provide('legendExportBusy', exportBusy)
 // Neither export hands over a file any more: the poster prints through printImageBlob and the packet
 // through the shared usePosterPrints.printPacket, so the download helper that served packet.pdf is gone.
 async function openPacket(variant = 'full') {
-  if (_packetBusy) return
-  _packetBusy = true
+  if (packetBusy.value) return
+  packetBusy.value = true
   try {
     // ★ THE PACKET PRINTS, AND IT PRINTS THROUGH THE SHARED RENDERER (audit card 2, and
     // the standing rule: an export button opens the print dialog, never hands over a file). This

plugin-designs/people-groups-grid/people-groups-grid.instances.json

@@ -22,19 +22,6 @@
         "show-search": "false",
         "show-filters": "false"
       }
-    },
-    {
-      "id": "regions-look",
-      "title": "People Groups Grid — the regions-dashboard look (link toggle + root watermark)",
-      "_why": "A merge preview (2026-09-28): SAME component and SAME cards as the standalone instance above, with only the two props he chose actually differing. Open this beside 'people-groups-grid' — if anything other than the filters toggle's styling and the watermark's placement differs between the two pages, the merge has changed something it was not asked to.",
-      "props": {
-        "profile": "people-groups-grid",
-        "provider": "maplibre",
-        "instanceId": "people-groups-grid-regions-look",
-        "pray-base-url": "https://pray.doxa.life",
-        "filters-toggle": "link",
-        "backdrop": "root"
-      }
     }
   ]
 }