fix(chase): band/mode/slot needs finally dim — 'worked' is not ''

spotEntityStatus says 'worked' when every grain is in the log; the
unconfirmed check compared its all-ledger verdict against the empty string,
so no band/mode/slot need ever dimmed however many unconfirmed QSOs stood
behind it — only the entity-level NEW, tested by map presence, behaved. The
check now runs for exactly the four needy statuses and asks for 'worked'.

app.go

@@ -20590,13 +20590,20 @@ func (a *App) ClusterSpotStatuses(spots []SpotQuery) []SpotStatus {
 		// A need judged against the confirmed ledger that the all-QSO ledger
 		// says was already worked is a missing QSL, and its badge should read
 		// as one. Judged at the SAME grain as the status itself.
-		if idx.chaseUnconf && out[i].Status != "" {
-			if eAll, ok := entities[dxccNum]; ok {
-				_, bAll := eAll.Bands[out[i].Band]
-				_, mAll := eAll.Modes[checkMode]
-				_, sAll := eAll.Slots[out[i].Band][checkMode]
-				if spotEntityStatus(true, bAll, mAll, sAll, out[i].Mode) == "" {
-					out[i].UnconfStatus = true
+		switch out[i].Status {
+		case "new-band-mode", "new-band", "new-mode", "new-slot":
+			if idx.chaseUnconf {
+				if eAll, ok := entities[dxccNum]; ok {
+					_, bAll := eAll.Bands[out[i].Band]
+					_, mAll := eAll.Modes[checkMode]
+					_, sAll := eAll.Slots[out[i].Band][checkMode]
+					// "worked", not "": that is what the verdict function says
+					// when every grain is in the log — the first version
+					// compared against empty and no band/mode/slot need ever
+					// dimmed, however many unconfirmed QSOs stood behind it.
+					if spotEntityStatus(true, bAll, mAll, sAll, out[i].Mode) == "worked" {
+						out[i].UnconfStatus = true
+					}
 				}
 			}
 		}