fix(radio): don't record frequencies the radio rejected

RadioTrackingService wrote lastSetTxFreq/lastSetRxFreq unconditionally after
calling setFrequency, ignoring its Boolean result. When the radio rejected the
frequency - the FT-817 CAT limit added in the previous commit, a dropped
Bluetooth link, or a failed ack - the remembered value no longer matched what
the radio actually holds. The manual-tuning detector then saw a phantom dial
change on the next read-back (read is the real frequency, lastSet is the one
that never landed) and entered tuning mode: it locked onto the wrong base and
kept rewriting the radio.

Probe of the state machine: before the fix, a rejected 1.26 GHz write against
a radio sitting on 145.5 MHz left lastSet at 1.26 GHz, so every subsequent
cycle read a 1.1 GHz gap and flagged manual tuning forever. After the fix the
lastSet is only updated on success, so the detector sees no change and the
loop keeps applying the next valid frequency. Same fix applied to the split
IC-705 path (setWorkingFrequency/setTxVfoFrequency).

core/data/src/main/java/com/rtbishop/look4sat/core/data/framework/RadioTrackingService.kt

@@ -267,12 +267,18 @@ class RadioTrackingService(
 
             if (tuningRadio.isEmpty()) {
                 if (txNow != null && txNow.isConnected && txRadioFreq != null) {
-                    txNow.setFrequency(txRadioFreq)
-                    lastSetTxFreq = txRadioFreq.toDouble()
+                    // Only remember the frequency we actually wrote: if the radio
+                    // rejects it (FT-817 CAT limit) or the link dropped, keeping
+                    // lastSetTxFreq updated would make the manual-tuning detector
+                    // see a phantom dial change on the next read-back.
+                    if (txNow.setFrequency(txRadioFreq)) {
+                        lastSetTxFreq = txRadioFreq.toDouble()
+                    }
                 }
                 if (rxNow != null && rxNow.isConnected && rxRadioFreq != null) {
-                    rxNow.setFrequency(rxRadioFreq)
-                    lastSetRxFreq = rxRadioFreq.toDouble()
+                    if (rxNow.setFrequency(rxRadioFreq)) {
+                        lastSetRxFreq = rxRadioFreq.toDouble()
+                    }
                 }
             }
 
@@ -450,13 +456,15 @@ class RadioTrackingService(
                 // 0x25/00 = active (RX) VFO, 0x25/01 = inactive (TX) VFO.
                 if (rxRadioFreq != null) {
                     Log.d(tag, "Split loop RX (0x25/00): ${rxRadioFreq}Hz")
-                    radio.setWorkingFrequency(rxRadioFreq)
-                    lastSetRxFreq = rxRadioFreq.toDouble()
+                    if (radio.setWorkingFrequency(rxRadioFreq)) {
+                        lastSetRxFreq = rxRadioFreq.toDouble()
+                    }
                 }
                 if (txRadioFreq != null) {
                     Log.d(tag, "Split loop TX (0x25/01): ${txRadioFreq}Hz")
-                    radio.setTxVfoFrequency(txRadioFreq)
-                    lastSetTxFreq = txRadioFreq.toDouble()
+                    if (radio.setTxVfoFrequency(txRadioFreq)) {
+                        lastSetTxFreq = txRadioFreq.toDouble()
+                    }
                 }
             }