chore: stop logging FlexRadio meter values

They arrive many times a second and were dumped every 5 s, drowning the rest of
the log. They only ever existed to confirm the meter NAMES during development,
which the subscription line already does — and that one is now a single summary
instead of one line per meter, a Flex announcing dozens of them at each connect.

internal/cat/flex.go

@@ -50,7 +50,6 @@ type Flex struct {
 	meterMeta      map[int]meterInfo
 	meterVal       map[int]float64
 	meterSub       map[int]bool // ids we've already sent "sub meter <id>" for
-	meterLogAt     time.Time    // throttle for value logging
 	vitaSeen       int          // count of UDP datagrams (first few logged for diag)
 	meterRawLogged bool         // log the first raw meter-definition status once
 	txRawLogged    bool         // log the first raw transmit status once (field-name audit)
@@ -768,11 +767,17 @@ func (f *Flex) handleStatus(payload string) {
 				f.meterMeta[num] = old
 			}
 			f.mu.Unlock()
+			// One line for the whole batch, not one per meter: a Flex announces
+			// dozens at connect and that was a wall of text every time.
+			var names []string
 			for _, id := range newIDs {
 				mi := f.meterMeta[id]
-				debugLog.Printf("Flex: meter def #%d %s/%s unit=%s lo=%g hi=%g → sub", id, mi.src, mi.name, mi.unit, mi.lo, mi.hi)
+				names = append(names, nonEmpty(mi.name, strconv.Itoa(id)))
 				f.subscribeMeter(id)
 			}
+			if len(names) > 0 {
+				debugLog.Printf("Flex: subscribed to %d meter(s): %s", len(names), strings.Join(names, " "))
+			}
 		}
 		// Spot status: "spot <index> …". Track the index so we can clear the
 		// panadapter, and log it verbatim — a click on a panadapter spot pushes a
@@ -2154,15 +2159,6 @@ func (f *Flex) parseVita(p []byte, seen int) {
 		raw := int16(binary.BigEndian.Uint16(payload[i+2 : i+4]))
 		f.meterVal[id] = scaleMeter(raw, f.meterMeta[id].unit)
 	}
-	if time.Since(f.meterLogAt) > 5*time.Second { // throttled dump to validate names
-		f.meterLogAt = time.Now()
-		var b strings.Builder
-		for id, v := range f.meterVal {
-			mi := f.meterMeta[id]
-			fmt.Fprintf(&b, "%s=%.1f%s ", nonEmpty(mi.name, strconv.Itoa(id)), v, mi.unit)
-		}
-		debugLog.Printf("Flex: meters %s", strings.TrimSpace(b.String()))
-	}
 	f.mu.Unlock()
 }