fix(drone): show sidebar panel and expose SDR config options

Remove inline style="display: none;" that was preventing the droneMode
panel from becoming visible when the active class was toggled — inline
styles override CSS class rules without !important. Add RTL-SDR device
index and HackRF toggle inputs that the backend already accepted but
were never surfaced in the UI; wire them through to the /drone/start
POST body.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

static/js/modes/drone.js

@@ -159,10 +159,12 @@
 
     function _start() {
         const iface = document.getElementById('droneWifiIface')?.value.trim() || null;
+        const rtlIndex = parseInt(document.getElementById('droneRtlIndex')?.value, 10) || 0;
+        const useHackrf = document.getElementById('droneUseHackrf')?.checked ?? true;
         fetch('/drone/start', {
             method: 'POST',
             headers: { 'Content-Type': 'application/json' },
-            body: JSON.stringify({ wifi_iface: iface }),
+            body: JSON.stringify({ wifi_iface: iface, rtl_sdr_index: rtlIndex, use_hackrf: useHackrf }),
         })
         .then(function (r) { return r.json(); })
         .then(function () { _setRunningUI(true); _refreshStatus(); })

templates/partials/modes/drone.html

@@ -1,5 +1,5 @@
 <!-- DRONE INTELLIGENCE MODE -->
-<div id="droneMode" class="mode-content" style="display: none;">
+<div id="droneMode" class="mode-content">
     <div class="section">
         <h3>Drone Intelligence</h3>
         <p class="info-text" style="margin-bottom: 12px;">
@@ -21,6 +21,18 @@
         <input type="text" id="droneWifiIface" placeholder="e.g. wlan0mon" style="width:100%;">
     </div>
 
+    <div class="section">
+        <h3>RTL-SDR Device <span style="font-weight:400; font-size:11px; color:var(--text-dim)">(433 MHz)</span></h3>
+        <input type="number" id="droneRtlIndex" value="0" min="0" max="7" style="width:100%;" placeholder="Device index">
+    </div>
+
+    <div class="section">
+        <label class="inline-checkbox">
+            <input type="checkbox" id="droneUseHackrf" checked>
+            Use HackRF <span style="font-size:10px; color:var(--text-dim);">(2.4 / 5.8 GHz)</span>
+        </label>
+    </div>
+
     <div class="section">
         <div style="display:flex; gap:8px;">
             <button id="droneStartBtn" class="run-btn" style="flex:1;">Start</button>