fix: PGXL meters/auth/fan, TCI spots+click, PTT-over-CAT, CW <LOGQSO>

- PGXL: remote AUTH password; direct-link meter fallback (VITA-first) with
  250 ms poll + peak-hold; fan mode uses bare "fanmode=" (was ignored).
- TCI: spot colour sent as decimal ARGB (ExpertSDR dropped the hex string);
  spot click handled via CLICKED_ON_SPOT / RX_CLICKED_ON_SPOT to fill the entry.
- FlexRadio: clicking an OpsLog spot on the panadapter now applies the mode too.
- Filter presets: the trash icon deletes again (Radix pointer-down intercept).
- PTT hotkey: keys over CAT when a backend is active (was hijacked by a stale
  Audio-tab RTS/DTR serial setting); AltGr keys allowed; presses logged.
- CW macro <LOGQSO>: logs after the preceding CW is sent, not on the first letter.

internal/cat/flex.go

@@ -61,10 +61,12 @@ type Flex struct {
 
 	spotsEnabled bool           // push cluster spots + manage the panadapter overlay
 	spotIdx      map[int]bool   // panadapter spot indices currently known to the radio
-	pendingSpot  map[int]string // seq → callsign, awaiting the spot index in the R response
-	pendingSplit map[int]bool   // seq → awaiting the new TX slice's index (split create)
-	spotCall     map[int]string // spot index → callsign (to fill the call on a panadapter click)
-	spotByCall   map[string]int // callsign → live spot index, so re-spotting a call replaces its old spot (WSJT decodes re-fire every cycle)
+	pendingSpot     map[int]string // seq → callsign, awaiting the spot index in the R response
+	pendingSpotMode map[int]string // seq → ADIF mode, paired with pendingSpot
+	pendingSplit    map[int]bool   // seq → awaiting the new TX slice's index (split create)
+	spotCall        map[int]string // spot index → callsign (to fill the call on a panadapter click)
+	spotMode        map[int]string // spot index → ADIF mode, so a click can also set the slice mode (SmartSDR tunes the spot's freq but not its mode)
+	spotByCall      map[string]int // callsign → live spot index, so re-spotting a call replaces its old spot (WSJT decodes re-fire every cycle)
 	sentCmds     map[int]string // seq → command text, so an R<seq> error names the command
 
 	// OnSpotClick is called (off the reader goroutine's hot path) when the user
@@ -185,7 +187,7 @@ func NewFlex(host string, port int, spotsEnabled bool) *Flex {
 	return &Flex{
 		host: strings.TrimSpace(host), port: port,
 		slices: map[int]*flexSlice{}, spotsEnabled: spotsEnabled,
-		spotIdx: map[int]bool{}, pendingSpot: map[int]string{}, spotCall: map[int]string{}, spotByCall: map[string]int{}, pendingSplit: map[int]bool{},
+		spotIdx: map[int]bool{}, pendingSpot: map[int]string{}, pendingSpotMode: map[int]string{}, spotCall: map[int]string{}, spotMode: map[int]string{}, spotByCall: map[string]int{}, pendingSplit: map[int]bool{},
 		meterMeta: map[int]meterInfo{}, meterVal: map[int]float64{}, meterSub: map[int]bool{},
 		sentCmds: map[int]string{}, txSetAt: map[string]time.Time{},
 		pinnedSlice: -1,
@@ -338,11 +340,17 @@ func (f *Flex) reader(conn net.Conn) {
 			if idx, err := strconv.Atoi(mm[1]); err == nil {
 				f.mu.Lock()
 				call := f.spotCall[idx]
+				mode := f.spotMode[idx]
 				handler := f.OnSpotClick
 				f.mu.Unlock()
 				if call != "" && handler != nil {
-					debugLog.Printf("Flex: spot %d triggered → %s", idx, call)
+					debugLog.Printf("Flex: spot %d triggered → %s (mode %s)", idx, call, mode)
 					go handler(call, 0)
+					// SmartSDR tunes the spot's frequency on click but does NOT apply
+					// its mode=, so set the slice mode ourselves from what we spotted.
+					if mode != "" {
+						go func(m string) { _ = f.SetMode(m) }(mode)
+					}
 				}
 			}
 		}
@@ -379,12 +387,15 @@ func (f *Flex) reader(conn net.Conn) {
 			// pair it with the callsign we stashed under this seq.
 			f.mu.Lock()
 			call, pending := f.pendingSpot[seq]
+			spotMode := f.pendingSpotMode[seq]
 			if pending {
 				delete(f.pendingSpot, seq)
+				delete(f.pendingSpotMode, seq)
 			}
 			if pending && ok && len(parts) >= 3 {
 				if idx, e := strconv.Atoi(strings.TrimSpace(parts[2])); e == nil {
 					f.spotCall[idx] = call
+					f.spotMode[idx] = spotMode
 					f.spotIdx[idx] = true
 					f.spotByCall[strings.ToUpper(call)] = idx
 				}
@@ -801,6 +812,7 @@ func (f *Flex) handleStatus(payload string) {
 				if removed {
 					delete(f.spotIdx, idx)
 					delete(f.spotCall, idx)
+					delete(f.spotMode, idx)
 				} else {
 					f.spotIdx[idx] = true
 				}
@@ -1263,6 +1275,7 @@ func (f *Flex) SendSpot(s SpotInfo) error {
 	if hadOld {
 		delete(f.spotByCall, upperCall)
 		delete(f.spotCall, old)
+		delete(f.spotMode, old)
 		delete(f.spotIdx, old)
 	}
 	f.mu.Unlock()
@@ -1288,6 +1301,7 @@ func (f *Flex) SendSpot(s SpotInfo) error {
 		// (trigger) can be resolved back to the callsign.
 		f.mu.Lock()
 		f.pendingSpot[seq] = s.Callsign
+		f.pendingSpotMode[seq] = s.Mode
 		f.mu.Unlock()
 	}
 	return nil
@@ -1320,6 +1334,7 @@ func (f *Flex) ClearSpots() error {
 	f.mu.Lock()
 	f.spotIdx = map[int]bool{}
 	f.spotCall = map[int]string{}
+	f.spotMode = map[int]string{}
 	f.spotByCall = map[string]int{}
 	connected := f.conn != nil
 	f.mu.Unlock()