style(settings): trim the DX Cluster panel's explanations

Per review: the digital-grouping sentence on the same-slot option, the
spot-lifetime explanation, the ring-buffer paragraph on the spots-kept field,
and the free-public-nodes line all go.

frontend/src/components/SettingsModal.tsx

@@ -5314,11 +5314,6 @@ function SettingsModalImpl({ onClose, onSaved, initialSection, onMainPaneChanged
               ))}
             </div>
           </div>
-          <p className="text-xs text-muted-foreground">
-            {t('clu.freeNodes')} <span className="font-mono">dxc.k0xm.net:7300</span>,{' '}
-            <span className="font-mono">dx.maritimecontestclub.net:7300</span>,{' '}
-            <span className="font-mono">w8avi.net:7300</span>.
-          </p>
           <label className="flex items-start gap-2 text-sm cursor-pointer border-t border-border/60 pt-3">
             <Checkbox checked={clusterWorkedSameSlot} className="mt-0.5"
               onCheckedChange={(c) => { const v = !!c; setClusterWorkedSameSlot(v); writeUiPref('opslog.clusterWorkedSameSlot', v ? '1' : '0'); }} />
@@ -5380,7 +5375,7 @@ function SettingsModalImpl({ onClose, onSaved, initialSection, onMainPaneChanged
                   const n = parseInt(raw, 10);
                   if (Number.isFinite(n) && n > 0) SetSpotMax(Math.min(10000, n)).catch(() => {});
                 }} />
-              <span className="text-xs text-muted-foreground">{t('clu.spotMaxHint')}</span>
+
             </div>
           </div>
 

frontend/src/lib/i18n.tsx

@@ -333,10 +333,10 @@ const en: Dict = {
   'gsc.scope': 'Match a square by', 'gsc.hunt': 'Chase', 'gsc.huntNew': 'New — never worked', 'gsc.huntUnconf': 'New and unconfirmed', 'gsc.scope_band_digi': 'This band + any digital mode', 'gsc.scope_band_mode': 'This band + this exact mode', 'gsc.scope_band_ftx': 'This band + any FT mode (FT8/FT4/FT2)', 'gsc.scope_mix_digi': 'Any band + any digital mode', 'gsc.scope_mix_mode': 'Any band + this exact mode', 'gsc.scope_mix_ftx': 'Any band + any FT mode (FT8/FT4/FT2)', 'gsc.hint': 'Decides when a square stops being NEW. Narrower means more squares to chase: per band and per exact mode is the most demanding, any band and any digital mode the least. Chasing unconfirmed as well keeps a square wanted until a QSL, LoTW or eQSL confirmation arrives — it is still missing from the award until then.',
   'gsm.basemap': 'Basemap', 'gsm.title': 'Grid squares', 'gsm.all': 'All', 'gsm.phone': 'Phone', 'gsm.cw': 'CW', 'gsm.digital': 'Digital', 'gsm.ftx': 'FTx', 'gsm.confirmed': 'confirmed', 'gsm.worked': 'worked', 'gsm.colConfirmed': 'Colour for confirmed squares', 'gsm.colWorked': 'Colour for worked (unconfirmed) squares', 'gsm.colReset': 'Back to the theme colours', 'gsm.refresh': 'Recount from the log', 'gsm.count': '{n} squares · {c} confirmed',
   'bo.nearKm': 'Count receivers within', 'bo.nearKmHint': 'A report proves YOUR path only if it was collected near you. Smaller is more local but leaves fewer receivers listening — too small and the watch has nothing to look at. 300 km borrows a whole region; 100 km suits 2 m, where a duct is narrow.',
-  'bo.open': 'open', 'bo.liveTip': '{band} is open — {n} stations, ~{km} km, {sector}{season}. Click for the band map.', 'bo.enable': 'Watch for band openings', 'bo.enableHint': '(10, 12, 6, 4 and 2 m. Switching this on adds the two RBN nodes and subscribes to the PSK Reporter feed — the detection needs far more ears than a cluster can give it.)', 'bo.feedUp': 'PSK Reporter feed up — {n} decodes seen', 'bo.feedDown': 'PSK Reporter feed down — needs your station grid, and a moment to connect', 'clu.spotTtl': 'Spot lifetime', 'clu.spotTtlNever': 'Keep', 'clu.spotMax': 'Spots kept', 'clu.spotMaxHint': 'The list is a ring buffer: past this, the oldest spot drops out. It is usually this, not the lifetime, that decides — a thousand spots arrive in a few minutes on a busy evening.', 'clu.spotTtlHint': 'minutes — spots older than this are removed from the list and the band maps. 0 keeps them.', 'clu.chaseGrids': 'Chase new grids', 'clu.chaseGridsHint': '(learns locators from your own WSJT-X decodes AND from PSK Reporter, and keeps them in their own database so the cluster shows them from the first second)', 'clu.chaseGridsStat': '{n} locators known — {p} waiting to be written', 'clu.workedSameSlot': 'Already worked only on the same slot',
+  'bo.open': 'open', 'bo.liveTip': '{band} is open — {n} stations, ~{km} km, {sector}{season}. Click for the band map.', 'bo.enable': 'Watch for band openings', 'bo.enableHint': '(10, 12, 6, 4 and 2 m. Switching this on adds the two RBN nodes and subscribes to the PSK Reporter feed — the detection needs far more ears than a cluster can give it.)', 'bo.feedUp': 'PSK Reporter feed up — {n} decodes seen', 'bo.feedDown': 'PSK Reporter feed down — needs your station grid, and a moment to connect', 'clu.spotTtl': 'Spot lifetime', 'clu.spotTtlNever': 'Keep', 'clu.spotMax': 'Spots kept', 'clu.spotMaxHint': '', 'clu.spotTtlHint': 'minutes — 0 keeps them.', 'clu.chaseGrids': 'Chase new grids', 'clu.chaseGridsHint': '(learns locators from your own WSJT-X decodes AND from PSK Reporter, and keeps them in their own database so the cluster shows them from the first second)', 'clu.chaseGridsStat': '{n} locators known — {p} waiting to be written', 'clu.workedSameSlot': 'Already worked only on the same slot',
   'clu.macros': 'Command buttons', 'clu.macrosHint': 'A named button beside the cluster command box. Leave the command empty and the button is not shown.',
   'clu.macroLabel': 'Button', 'clu.macroCmd': 'Command',
-  'clu.workedSameSlotHint': '— a spot shows "worked" only if you worked that call on the SAME band and mode, not just anywhere. Combines with digital-mode grouping (Settings → General): with it on, a call worked on 20m FT8 also counts as worked for a 20m FT4 spot; with it off, FT8 and FT4 are separate slots.',
+  'clu.workedSameSlotHint': '— a spot shows "worked" only if you worked that call on the SAME band and mode, not just anywhere.',
   // Backup panel
 
 
@@ -835,8 +835,8 @@ const fr: Dict = {
   'bo.nearKm': 'Compter les récepteurs à moins de', 'bo.nearKmHint': 'Un report ne prouve TON chemin que s’il a été collecté près de chez toi. Plus petit est plus local, mais laisse moins de récepteurs à l’écoute — trop petit, la veille n’a plus rien à observer. 300 km emprunte les oreilles de toute une région ; 100 km convient au 2 m, où un conduit est étroit.',
   'bo.open': 'ouvert', 'bo.liveTip': '{band} est ouvert — {n} stations, ~{km} km, {sector}{season}. Cliquer pour le bandmap.', 'bo.enable': 'Surveiller les ouvertures de bande', 'bo.enableHint': "(10, 12, 6, 4 et 2 m. Activer ajoute les deux nœuds RBN et souscrit au flux PSK Reporter — la détection a besoin de bien plus d oreilles qu un cluster ne peut en fournir.)", 'bo.feedUp': 'Flux PSK Reporter actif — {n} décodages vus', 'bo.feedDown': 'Flux PSK Reporter inactif — il faut ton locator, et un instant pour se connecter', 'clu.workedSameSlot': 'Déjà contacté seulement sur le même slot',
   'clu.macros': 'Boutons de commande', 'clu.macrosHint': 'Un bouton nommé à côté du champ de commande du cluster. Laisse la commande vide et le bouton n’est pas affiché.',
-  'clu.macroLabel': 'Bouton', 'clu.macroCmd': 'Commande', 'clu.spotTtl': 'Durée de vie des spots', 'clu.spotTtlNever': 'Garder', 'clu.spotMax': 'Nombre de spots conservés', 'clu.spotMaxHint': "La liste est un tampon circulaire : au-delà, le plus ancien sort. C'est souvent lui, et non la durée de vie, qui décide — mille spots arrivent en quelques minutes un soir chargé.", 'clu.spotTtlHint': 'minutes — les spots plus vieux que ça sont retirés de la liste et des bandmaps. 0 les conserve.', 'clu.chaseGrids': 'Chasser les nouveaux locators', 'clu.chaseGridsHint': '(apprend les locators depuis TES propres décodages WSJT-X ET depuis PSK Reporter, et les garde dans leur propre base pour que le cluster les affiche dès la première seconde)', 'clu.chaseGridsStat': '{n} locators connus — {p} en attente d’écriture',
+  'clu.macroLabel': 'Bouton', 'clu.macroCmd': 'Commande', 'clu.spotTtl': 'Durée de vie des spots', 'clu.spotTtlNever': 'Garder', 'clu.spotMax': 'Nombre de spots conservés', 'clu.spotMaxHint': '', 'clu.spotTtlHint': 'minutes — 0 les conserve.', 'clu.chaseGrids': 'Chasser les nouveaux locators', 'clu.chaseGridsHint': '(apprend les locators depuis TES propres décodages WSJT-X ET depuis PSK Reporter, et les garde dans leur propre base pour que le cluster les affiche dès la première seconde)', 'clu.chaseGridsStat': '{n} locators connus — {p} en attente d’écriture',
-  'clu.workedSameSlotHint': '— un spot n\'affiche « contacté » que si vous avez contacté cet indicatif sur la MÊME bande et le MÊME mode, pas juste n\'importe où. Se combine avec le groupage des modes numériques (Réglages → Général) : activé, un indicatif contacté en 20m FT8 compte aussi comme contacté pour un spot 20m FT4 ; désactivé, FT8 et FT4 sont des slots distincts.',
+  'clu.workedSameSlotHint': "— un spot n'est « contacté » que si cet indicatif a été fait sur la MÊME bande et le même mode, pas n'importe où.",
 
 
   'bk.auto': 'Sauvegarde auto à la fermeture d\'OpsLog (max 1×/jour)', 'bk.folder': 'Dossier de sauvegarde', 'bk.folderPh': 'vide = dossier par défaut', 'bk.browse': 'Parcourir…',