fix: camera distance + beacon position

- Reduce camera distance for larger room view (0.5x iso, 0.6x overhead)
- Fix beacon coords: use floor.width/height centering (matches page calcs)
- Move beacon outside offset group (coords already centered)
- Rooms now appear larger in default view

frontend/src/components/facility3d/CameraPresets.tsx

@@ -26,15 +26,16 @@ const getPresetConfig = (
 
     switch (preset) {
         case 'OVERHEAD':
-            // Top-down view - looking straight down
+            // Top-down view - camera height based on floor size, but closer
+            const overheadDist = focusTarget ? 8 : maxDim * 0.6;
             return {
-                position: [centerX, maxDim * 1.2, centerZ + 0.1] as [number, number, number],
+                position: [centerX, overheadDist, centerZ + 0.1] as [number, number, number],
                 target: [centerX, 0, centerZ] as [number, number, number],
             };
 
         case 'ISOMETRIC':
-            // 3/4 isometric view - classic strategy game angle
-            const isoDistance = focusTarget ? 15 : maxDim * 0.8;
+            // 3/4 isometric view - closer for better visibility
+            const isoDistance = focusTarget ? 12 : maxDim * 0.5;
             return {
                 position: [centerX + isoDistance * 0.7, isoDistance * 0.6, centerZ + isoDistance * 0.7] as [number, number, number],
                 target: [centerX, 0, centerZ] as [number, number, number],
@@ -42,7 +43,7 @@ const getPresetConfig = (
 
         default:
             return {
-                position: [0, 30, 40] as [number, number, number],
+                position: [0, 20, 25] as [number, number, number],
                 target: [0, 0, 0] as [number, number, number],
             };
     }

frontend/src/components/facility3d/FacilityScene.tsx

@@ -33,35 +33,13 @@ export function FacilityScene({
     dimMode = false,
     beaconPosition = null,
 }: FacilitySceneProps) {
-    // Calculate actual floor bounds from all sections
-    const floorBounds = useMemo(() => {
-        let minX = Infinity, minZ = Infinity, maxX = -Infinity, maxZ = -Infinity;
+    // Use floor dimensions for centering - must match the calculation in Facility3DViewerPage
+    const floorCenterX = (data.floor.width * SCALE) / 2;
+    const floorCenterZ = (data.floor.height * SCALE) / 2;
 
-        for (const room of data.rooms) {
-            for (const section of room.sections) {
-                minX = Math.min(minX, section.posX * SCALE);
-                minZ = Math.min(minZ, section.posY * SCALE);
-                maxX = Math.max(maxX, (section.posX + section.width) * SCALE);
-                maxZ = Math.max(maxZ, (section.posY + section.height) * SCALE);
-            }
-        }
-
-        // Fallback to floor dimensions if no sections
-        if (minX === Infinity) {
-            minX = 0;
-            minZ = 0;
-            maxX = data.floor.width * SCALE;
-            maxZ = data.floor.height * SCALE;
-        }
-
-        return {
-            minX, minZ, maxX, maxZ,
-            width: maxX - minX,
-            height: maxZ - minZ,
-            centerX: (minX + maxX) / 2,
-            centerZ: (minZ + maxZ) / 2,
-        };
-    }, [data]);
+    // Calculate floor bounds for camera
+    const floorWidth = data.floor.width * SCALE;
+    const floorHeight = data.floor.height * SCALE;
 
     return (
         <>
@@ -74,8 +52,8 @@ export function FacilityScene({
                 shadow-mapSize={[2048, 2048]}
             />
 
-            {/* Offset to center the content */}
-            <group position={[-floorBounds.centerX, 0, -floorBounds.centerZ]}>
+            {/* Offset to center the content - uses floor dimensions to match page calculations */}
+            <group position={[-floorCenterX, 0, -floorCenterZ]}>
                 {data.rooms.map((room: Room3D) => (
                     <RoomObject
                         key={room.id}
@@ -91,14 +69,15 @@ export function FacilityScene({
                         }}
                     />
                 ))}
-                {/* Beacon for selected/searched plant - MUST be inside offset group */}
-                {beaconPosition && <Beacon position={beaconPosition} />}
             </group>
 
+            {/* Beacon rendered OUTSIDE offset group - coords already include centering */}
+            {beaconPosition && <Beacon position={beaconPosition} />}
+
             <ContactShadows
                 position={[0, -0.02, 0]}
                 opacity={0.35}
-                scale={floorBounds.width * 1.5}
+                scale={floorWidth * 1.5}
                 blur={2}
                 far={12}
                 resolution={512}
@@ -108,8 +87,8 @@ export function FacilityScene({
             {/* Preset-based camera system */}
             <CameraPresets
                 preset={cameraPreset}
-                floorWidth={floorBounds.width}
-                floorHeight={floorBounds.height}
+                floorWidth={floorWidth}
+                floorHeight={floorHeight}
                 focusTarget={focusTarget}
                 onReady={onControlsReady}
             />