feat: RoutePanel/StationOverlay 개선

- 시점/종점: 드론 첫/마지막 프레임 기준 역명 표시 (회덕, 대전조차장 등)
- (상)/(하) 접미어 제거 (cleanTitle)
- 패널 높이 90%, 글씨 크기 +30%, 투명도 밝게
- 교량/터널 POI 겹침 방지 (7% 간격)

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

client/src/components/overlay/RoutePanel.tsx

@@ -23,6 +23,8 @@ interface RoutePanelProps {
 
 const VIDEO_FPS = 30000 / 1001;
 
+const cleanTitle = (t: string) => t.replace(/\s*\([상하]\)\s*$/, '').trim();
+
 function stationKm(title: string): number {
   const m = title.match(/(\d+)[Kk](\d+)/);
   if (!m) return -1;
@@ -61,6 +63,8 @@ export default function RoutePanel({ currentTime, visible, onSeek }: RoutePanelP
   const [currentKm, setCurrentKm] = useState(0);
   const [currentStationTitle, setCurrentStationTitle] = useState('');
   const [visibleRange, setVisibleRange] = useState<{ minKm: number; maxKm: number } | null>(null);
+  const [routeStartTitle, setRouteStartTitle] = useState('');
+  const [routeEndTitle, setRouteEndTitle] = useState('');
   const panelRef = useRef<HTMLDivElement>(null);
   const [dragYPct, setDragYPct] = useState(0);
   const [dragging, setDragging] = useState(false);
@@ -89,6 +93,24 @@ export default function RoutePanel({ currentTime, visible, onSeek }: RoutePanelP
       .catch(() => {});
   }, [visible, droneFramesLoaded]);
 
+  // 시점/종점: 드론 첫/마지막 프레임에서 가장 가까운 역 이름
+  useEffect(() => {
+    if (!droneFramesLoaded || !stations.length) return;
+    const frames = allDroneFramesRef.current;
+    if (!frames.length) return;
+    const nearest = (f: DroneFrameBasic) => {
+      let best = stations[0];
+      let bestD = (f.lat - best.lat) ** 2 + (f.lon - best.lon) ** 2;
+      for (let i = 1; i < stations.length; i++) {
+        const d = (f.lat - stations[i].lat) ** 2 + (f.lon - stations[i].lon) ** 2;
+        if (d < bestD) { best = stations[i]; bestD = d; }
+      }
+      return best.title;
+    };
+    setRouteStartTitle(nearest(frames[0]));
+    setRouteEndTitle(nearest(frames[frames.length - 1]));
+  }, [droneFramesLoaded, stations]);
+
   // Update current km and visible range based on currentTime
   useEffect(() => {
     if (!droneFramesLoaded) return;
@@ -236,57 +258,63 @@ export default function RoutePanel({ currentTime, visible, onSeek }: RoutePanelP
   return (
     <div
       ref={panelRef}
-      className="absolute left-0 w-24 bg-black/80 border-r border-white/10 z-30"
+      className="absolute left-0 w-28 border-r border-white/20 z-30"
-      style={{ top: '12%', height: '76%' }}
+      style={{ top: '5%', height: '90%', background: 'rgba(0,0,0,0.6)' }}
     >
       {/* Center vertical line */}
       <div
         className="absolute"
-        style={{ left: 36, width: 2, top: 18, bottom: 18, background: 'rgba(255,255,255,0.3)' }}
+        style={{ left: 38, width: 2, top: 22, bottom: 22, background: 'rgba(255,255,255,0.5)' }}
       />
 
-      {/* 시점 측점명 — 상단 */}
+      {/* 시점 역명 — 상단 */}
-      <div className="absolute left-0 right-0 flex items-center gap-1" style={{ top: 3 }}>
+      <div className="absolute left-0 right-0 flex items-center gap-1" style={{ top: 4 }}>
-        <div className="w-1.5 h-1.5 rounded-full bg-white/50 shrink-0" style={{ marginLeft: 30 }} />
+        <div className="w-2 h-2 rounded-full bg-white/80 shrink-0" style={{ marginLeft: 29 }} />
-        <span className="text-[9px] text-white/60 truncate">{startTitle}</span>
+        <span className="text-[11px] text-white/90 font-semibold truncate">{cleanTitle(routeStartTitle)}</span>
       </div>
 
-      {/* 종점 측점명 — 하단 */}
+      {/* 종점 역명 — 하단 */}
-      <div className="absolute left-0 right-0 flex items-center gap-1" style={{ bottom: 3 }}>
+      <div className="absolute left-0 right-0 flex items-center gap-1" style={{ bottom: 4 }}>
-        <div className="w-1.5 h-1.5 rounded-full bg-white/50 shrink-0" style={{ marginLeft: 30 }} />
+        <div className="w-2 h-2 rounded-full bg-white/80 shrink-0" style={{ marginLeft: 29 }} />
-        <span className="text-[9px] text-white/60 truncate">{endTitle}</span>
+        <span className="text-[11px] text-white/90 font-semibold truncate">{cleanTitle(routeEndTitle)}</span>
       </div>
 
-      {/* 교량/터널 POIs */}
+      {/* 교량/터널 POIs — 겹침 방지: Y 간격 7% 미만이면 건너뜀 */}
-      {filteredPois.map((poi, i) => {
+      {(() => {
+        const MIN_GAP = 7; // %
+        const placed: number[] = [];
+        return filteredPois.map((poi, i) => {
           const km = poiKm(poi, validStations);
           if (km < 0) return null;
           const y = kmToY(km);
-        if (y < 2 || y > 98) return null;
+          if (y < 5 || y > 95) return null;
+          if (placed.some(py => Math.abs(py - y) < MIN_GAP)) return null;
+          placed.push(y);
           return (
           <div
             key={`poi-${i}`}
             className="absolute flex items-center pointer-events-none"
             style={{ top: `${y}%`, transform: 'translateY(-50%)', left: 0, right: 0 }}
           >
-            <div style={{ position: 'absolute', left: 30, width: 12, display: 'flex', justifyContent: 'center' }}>
+            <div style={{ position: 'absolute', left: 30, width: 16, display: 'flex', justifyContent: 'center' }}>
               <div
-                className="w-2.5 h-2.5 rounded-sm"
+                className="w-3 h-3 rounded-sm"
-                style={{ background: poi.category === '\uD130\uB110' ? '#6366f1' : '#0ea5e9' }}
+                style={{ background: poi.category === '\uD130\uB110' ? '#818cf8' : '#38bdf8' }}
               />
             </div>
             <div
-              className="text-[8px] truncate"
+              className="text-[10px] truncate font-medium"
               style={{
-                position: 'absolute', left: 44, right: 2,
+                position: 'absolute', left: 48, right: 2,
-                color: poi.category === '\uD130\uB110' ? '#a5b4fc' : '#7dd3fc',
+                color: poi.category === '\uD130\uB110' ? '#c7d2fe' : '#bae6fd',
               }}
             >
-              {poi.title}
+              {cleanTitle(poi.title)}
             </div>
           </div>
         );
-      })}
+        });
+      })()}
 
       {/* Green visible range box */}
       {visibleRange && (
@@ -326,9 +354,9 @@ export default function RoutePanel({ currentTime, visible, onSeek }: RoutePanelP
         />
         <div
           style={{ position: 'absolute', left: 44 }}
-          className="bg-orange-500 text-white text-[9px] font-bold px-1.5 py-0.5 rounded whitespace-nowrap"
+          className="bg-orange-500 text-white text-[11px] font-bold px-1.5 py-0.5 rounded whitespace-nowrap"
         >
-          {currentStationTitle}
+          {cleanTitle(currentStationTitle)}
         </div>
       </div>
     </div>

client/src/components/overlay/StationOverlay.tsx

@@ -65,6 +65,8 @@ interface RenderCache {
   poiCount: number;
 }
 
+const cleanTitle = (t: string) => t.replace(/\s*\([상하]\)\s*$/, '').trim();
+
 function stationOrder(title: string): number {
   const m = title.match(/(\d+)[Kk](\d+)/);
   if (!m) return 0;
@@ -470,10 +472,10 @@ export default function StationOverlay({ currentFrame, currentTime, fps, visible
           const lx = Math.max(2, x + 8);
           ctx.strokeStyle = 'rgba(0,0,0,0.85)'; ctx.lineWidth = 4;
           ctx.lineJoin = 'round';
-          ctx.strokeText(stA.title, lx, y);
+          ctx.strokeText(cleanTitle(stA.title), lx, y);
           // 텍스트 본문
           ctx.fillStyle = 'rgba(255,200,200,1.0)';
-          ctx.fillText(stA.title, lx, y);
+          ctx.fillText(cleanTitle(stA.title), lx, y);
         });
 
         // POI 마커 — 보간 후 EMA 적용
@@ -495,7 +497,7 @@ export default function StationOverlay({ currentFrame, currentTime, fps, visible
           ctx.stroke();
           // 이모지 + 텍스트
           const emoji = CATEGORY_EMOJI[poiA.category] ?? '📌';
-          const label = `${emoji} ${poiA.title}`;
+          const label = `${emoji} ${cleanTitle(poiA.title)}`;
           const lx = Math.max(2, px + 14);
           ctx.strokeStyle = 'rgba(0,0,0,0.85)'; ctx.lineWidth = 4;
           ctx.lineJoin = 'round';