fix: remove defunct FLIR/NVG/CRT style presets, keep only DEFAULT and SATELLITE

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

frontend/src/app/page.tsx

@@ -161,7 +161,7 @@ export default function Dashboard() {
   });
 
   const [activeStyle, setActiveStyle] = useState('DEFAULT');
-  const stylesList = ['DEFAULT', 'SATELLITE', 'FLIR', 'NVG', 'CRT'];
+  const stylesList = ['DEFAULT', 'SATELLITE'];
 
   const cycleStyle = () => {
     setActiveStyle((prev) => {

frontend/src/components/ChangelogModal.tsx

@@ -41,7 +41,7 @@ const NEW_FEATURES = [
     {
         icon: <Layers size={14} className="text-cyan-400" />,
         title: "SATELLITE Style Preset",
-        desc: "STYLE button now cycles: DEFAULT → SATELLITE → FLIR → NVG → CRT. SATELLITE auto-enables high-res imagery.",
+        desc: "STYLE button now cycles: DEFAULT → SATELLITE. SATELLITE auto-enables high-res imagery.",
         color: "cyan",
     },
 ];