feat(ft map): click a station to take it, double-click to answer it

The map draws a dot per decoded station and they did nothing. They now
answer the same two gestures as the decodes list, because the two are
views of the same list and a click has to mean the same thing on both:
one takes the callsign into the entry (and points the PSK Reporter panel
at it), two answer it.

The handlers were written inline on the list, so the map could not offer
them without a second copy — they are named once now and given to both.
Leaflet leaves the telling apart of click and dblclick to the handler, an
invisible marker three times the dot's radius takes the clicks (a
three-pixel dot is a fine mark and a poor target), and the double click
is stopped rather than merely unpropagated: the map zooms on one, and
answering a station is not a request to zoom in on it.

frontend/src/App.tsx

@@ -6459,6 +6459,37 @@ export default function App() {
     </div>
   );
 
+  // ONE CLICK TAKES THE STATION, TWO ANSWER IT — and the FT map means the same
+  // by them as the list does. They were written inline on the list, so the map
+  // had no way to offer the same gestures without a second copy of them.
+  function selectDecode(d: any) {
+    setPskTarget((d.call ?? '').toUpperCase());
+    setPskTargetMode(d.mode ?? '');
+    onCallsignInput(d.call, { force: true });
+  }
+  function callDecode(d: any) {
+    // The station being answered is also the one worth analysing: the PSK
+    // Reporter panel follows the click rather than asking for a second one.
+    setPskTarget((d.call ?? '').toUpperCase());
+    setPskTargetMode(d.mode ?? '');
+    // Auto-call adopts the station: the click chooses WHO, the watchdogs still
+    // decide how long it is called for.
+    TakeAutoCallTarget(d.call ?? '', d.band ?? '', d.mode ?? '').catch(() => {});
+    onCallsignInput(d.call, { force: true });
+    // With two slices on two bands, the Reply reaches the right INSTANCE but the
+    // radio still transmits on whichever slice holds the TX flag. Move it to the
+    // decode's band first, or an 80 m answer goes out on 20 m. A no-op on any
+    // backend without slices.
+    FlexTXOnBand(d.band ?? '').catch(() => { /* not a Flex, or no such slice */ });
+    AnswerDecode(
+      d.instance ?? '', d.ms ?? 0, d.snr, d.dt ?? 0,
+      // The RAW mode marker, not the resolved name: the receiving application
+      // matches the Reply against its decode list field for field, and JTDX
+      // drops one that says "FT8" where it decoded "~".
+      d.audio_hz ?? 0, d.mode_raw || d.mode || '', d.msg_raw ?? d.msg ?? '', !!d.low_conf,
+    ).catch((e: any) => setError(String(e?.message ?? e)));
+  }
+
   const renderDecodesList = () => (
     <DecodesPanel
       decodes={decodes}
@@ -6483,33 +6514,8 @@ export default function App() {
       // One click: take the station, transmit nothing. The entry is filled and
       // the panels follow it, exactly as clicking a cluster spot does — so a
       // row can be inspected, looked up and read about without keying up.
-      onSelect={(d) => {
-        setPskTarget((d.call ?? '').toUpperCase());
-        setPskTargetMode(d.mode ?? '');
-        onCallsignInput(d.call, { force: true });
-      }}
-      onCall={(d) => {
-        // The station being answered is also the one worth analysing: the PSK
-        // Reporter panel follows the click rather than asking for a second one.
-        setPskTarget((d.call ?? '').toUpperCase());
-        setPskTargetMode(d.mode ?? '');
-        // Auto-call adopts the station: the click chooses WHO, the watchdogs
-        // still decide how long it is called for.
-        TakeAutoCallTarget(d.call ?? '', d.band ?? '', d.mode ?? '').catch(() => {});
-        onCallsignInput(d.call, { force: true });
-        // With two slices on two bands, the Reply reaches the right INSTANCE but
-        // the radio still transmits on whichever slice holds the TX flag. Move
-        // it to the decode's band first, or an 80 m answer goes out on 20 m.
-        // A no-op on any backend without slices.
-        FlexTXOnBand(d.band ?? '').catch(() => { /* not a Flex, or no such slice */ });
-        AnswerDecode(
-          d.instance ?? '', d.ms ?? 0, d.snr, d.dt ?? 0,
-          // The RAW mode marker, not the resolved name: the receiving
-          // application matches the Reply against its decode list field for
-          // field, and JTDX drops one that says "FT8" where it decoded "~".
-          d.audio_hz ?? 0, d.mode_raw || d.mode || '', d.msg_raw ?? d.msg ?? '', !!d.low_conf,
-        ).catch((e: any) => setError(String(e?.message ?? e)));
-      }}
+      onSelect={selectDecode}
+      onCall={callDecode}
       // Wipes the live view only — nothing here is stored, and the staging
       // buffer goes too or the next flush would put back what was just cleared.
       onClear={(instance) => {
@@ -8733,7 +8739,8 @@ export default function App() {
               <TabsContent value="ftmap" className="mt-0 flex flex-col min-h-0 flex-1 data-[state=inactive]:hidden">
                 {activeTab === 'ftmap' && (
                   <div className="h-full w-full min-h-0 bg-card border border-border rounded-lg overflow-hidden">
-                    <FTMapPanel decodes={decodes as any} myGrid={station.my_grid} />
+                    <FTMapPanel decodes={decodes as any} myGrid={station.my_grid}
+                      onSelect={selectDecode} onCall={callDecode} />
                   </div>
                 )}
               </TabsContent>