fix: remove broken Room view, simplify to Overhead/Isometric

- Remove ROOM_FOCUS preset (wasn't rendering correctly)
- Keep Overhead and Isometric views which work well
- FocusTarget now zooms within current preset
- Text navigation provides room selection

frontend/src/components/facility3d/CameraPresets.tsx

@@ -1,7 +1,7 @@
 import { useEffect, useRef } from 'react';
 import { CameraControls } from '@react-three/drei';
 
-export type CameraPreset = 'OVERHEAD' | 'ISOMETRIC' | 'ROOM_FOCUS';
+export type CameraPreset = 'OVERHEAD' | 'ISOMETRIC';
 
 interface CameraPresetsProps {
     preset: CameraPreset;
@@ -18,13 +18,15 @@ const getPresetConfig = (
     floorHeight: number,
     focusTarget?: { x: number; z: number } | null
 ) => {
-    const centerX = 0;
-    const centerZ = 0;
     const maxDim = Math.max(floorWidth, floorHeight);
 
+    // If we have a focus target, use it as center, otherwise use floor center
+    const centerX = focusTarget?.x ?? 0;
+    const centerZ = focusTarget?.z ?? 0;
+
     switch (preset) {
         case 'OVERHEAD':
-            // Top-down view - looking straight down at full floor
+            // Top-down view - looking straight down
             return {
                 position: [centerX, maxDim * 1.2, centerZ + 0.1] as [number, number, number],
                 target: [centerX, 0, centerZ] as [number, number, number],
@@ -32,27 +34,16 @@ const getPresetConfig = (
 
         case 'ISOMETRIC':
             // 3/4 isometric view - classic strategy game angle
-            const isoDistance = maxDim * 0.8;
+            const isoDistance = focusTarget ? 15 : maxDim * 0.8;
             return {
-                position: [centerX + isoDistance, isoDistance * 0.7, centerZ + isoDistance] as [number, number, number],
+                position: [centerX + isoDistance * 0.7, isoDistance * 0.6, centerZ + isoDistance * 0.7] as [number, number, number],
                 target: [centerX, 0, centerZ] as [number, number, number],
             };
 
-        case 'ROOM_FOCUS':
-            // Focus on a specific room - position camera above looking down at room
-            const fx = focusTarget?.x ?? centerX;
-            const fz = focusTarget?.z ?? centerZ;
-            // Use a zoomed-in overhead-ish view centered on the room
-            // Height of 12 gives good room-level visibility
-            return {
-                position: [fx + 4, 12, fz + 4] as [number, number, number],
-                target: [fx, 0, fz] as [number, number, number],
-            };
-
         default:
             return {
-                position: [centerX + 40, 30, centerZ + 40] as [number, number, number],
+                position: [0, 30, 40] as [number, number, number],
-                target: [centerX, 0, centerZ] as [number, number, number],
+                target: [0, 0, 0] as [number, number, number],
             };
     }
 };
@@ -108,9 +99,9 @@ export function CameraPresets({
             // Polar angle limits (don't go below floor)
             minPolarAngle={0.1}
             maxPolarAngle={Math.PI / 2.1}
-            // Enable panning for room exploration
+            // Enable panning for exploration
             dollySpeed={1}
-            truckSpeed={preset === 'ROOM_FOCUS' ? 1 : 0.5}
+            truckSpeed={0.8}
             // Smooth damping
             smoothTime={0.25}
             makeDefault
@@ -118,7 +109,7 @@ export function CameraPresets({
     );
 }
 
-// UI Component for preset selector buttons
+// UI Component for preset selector buttons - just two options now
 interface CameraPresetSelectorProps {
     current: CameraPreset;
     onChange: (preset: CameraPreset) => void;
@@ -128,7 +119,6 @@ export function CameraPresetSelector({ current, onChange }: CameraPresetSelector
     const presets: { id: CameraPreset; label: string; icon: string }[] = [
         { id: 'OVERHEAD', label: 'Overhead', icon: '⬇️' },
         { id: 'ISOMETRIC', label: 'Isometric', icon: '📐' },
-        { id: 'ROOM_FOCUS', label: 'Room', icon: '🔍' },
     ];
 
     return (

frontend/src/pages/Facility3DViewerPage.tsx

@@ -90,7 +90,7 @@ export default function Facility3DViewerPage() {
                         const plant: PlantPosition = { ...match, x, y, z };
                         setSelectedPlant(plant);
                         setFocusTarget({ x, z });
-                        setCameraPreset('ROOM_FOCUS');
+                        setCameraPreset('ISOMETRIC');
                         setBeaconPosition([x, y, z]);
                         setHighlightedTags([targetedPlantTag]);
                         setDimMode(true);
@@ -150,7 +150,7 @@ export default function Facility3DViewerPage() {
         const x = (room.posX + room.width / 2) * SCALE - (floorData.floor.width * SCALE / 2);
         const z = (room.posY + room.height / 2) * SCALE - (floorData.floor.height * SCALE / 2);
         setFocusTarget({ x, z });
-        setCameraPreset('ROOM_FOCUS');
+        setCameraPreset('ISOMETRIC');
         // Clear search state when navigating by room
         setBeaconPosition(null);
         setHighlightedTags([]);
@@ -194,7 +194,7 @@ export default function Facility3DViewerPage() {
         const y = 0.4 + (result.position.tier * 0.6);
 
         setFocusTarget({ x, z });
-        setCameraPreset('ROOM_FOCUS');
+        setCameraPreset('ISOMETRIC');
         setBeaconPosition([x, y, z]);
         setHighlightedTags([result.label]);
         setDimMode(true);
@@ -277,9 +277,6 @@ export default function Facility3DViewerPage() {
                         current={cameraPreset}
                         onChange={(preset) => {
                             setCameraPreset(preset);
-                            if (preset !== 'ROOM_FOCUS') {
-                                setFocusTarget(null);
-                            }
                         }}
                     />
                 </div>
@@ -355,7 +352,7 @@ export default function Facility3DViewerPage() {
                                     const y = 0.4 + (plant.tier * 0.6);
 
                                     setFocusTarget({ x, z });
-                                    setCameraPreset('ROOM_FOCUS');
+                                    setCameraPreset('ISOMETRIC');
                                     setBeaconPosition([x, y, z]);
                                     setDimMode(false);
                                     setHighlightedTags([plant.plant?.tagNumber || '']);