fix: stabilize right widget layout and sight frame menu height with lang

src/app/index.tsx

@@ -1,13 +1,19 @@
 import * as React from "react";
 
 import { Router } from "./router";
-import { CustomTheme } from "@shared";
+import { CustomTheme, languageStore } from "@shared";
 import { ThemeProvider } from "@mui/material/styles";
 import { ToastContainer } from "react-toastify";
 import { GlobalErrorBoundary } from "./GlobalErrorBoundary";
 import { TestingModeBanner } from "@widgets";
+import { observer } from "mobx-react-lite";
 
-export const App: React.FC = () => (
+export const App: React.FC = observer(() => {
+  React.useEffect(() => {
+    document.documentElement.lang = languageStore.language;
+  }, [languageStore.language]);
+
+  return (
     <GlobalErrorBoundary>
       <ThemeProvider theme={CustomTheme.Light}>
         <TestingModeBanner />
@@ -16,3 +22,4 @@ export const App: React.FC = () => (
       </ThemeProvider>
     </GlobalErrorBoundary>
   );
+});

src/client/src/components/ListOfSights.jsx

@@ -411,7 +411,7 @@ const ListOfSights = observer(() => {
   }, [currentSelectedSight]);
 
   return (
-    <div className="right-widget">
+    <div className="right-widget" lang={selectedLanguageRight}>
       {currentSelectedSight && (
         <SightFrame
           key={currentSelectedSight.id}

src/client/src/components/side-menu/LeftWidget.jsx

@@ -212,7 +212,7 @@ const LeftWidget = observer(
     };
 
     return (
-      <div ref={widgetRef} style={widgetTransformStyle} className="left-widget">
+      <div ref={widgetRef} style={widgetTransformStyle} className="left-widget" lang={selectedLanguage}>
         {isLoading ? (
           <div>Загрузка информации...</div>
         ) : error ? (

src/client/src/components/widgets/ThreeView.tsx

@@ -1,6 +1,6 @@
-import { Canvas, useThree } from "@react-three/fiber";
+import { Canvas, useThree, useFrame } from "@react-three/fiber";
-import { OrbitControls, Stage, useGLTF } from "@react-three/drei";
+import { OrbitControls, Center, useGLTF } from "@react-three/drei";
-import React, { useEffect, Suspense } from "react";
+import React, { useEffect, useRef, Suspense, useCallback } from "react";
 import { BACKGROUND_COLOR } from "../../assets/Constants";
 import * as THREE from "three";
 import type { OrbitControls as OrbitControlsImpl } from "three-stdlib";
@@ -23,6 +23,7 @@ interface ThreeViewProps {
 const ZOOM_FACTOR = 1.2;
 const MIN_DISTANCE = 1;
 const MAX_DISTANCE = 100;
+const CAMERA_FOV = 40;
 
 const TouchController = () => {
   const { camera, controls, gl } = useThree();
@@ -197,6 +198,47 @@ const AutoResize = () => {
   return null;
 };
 
+const FitCamera = ({
+  groupRef,
+  onReady,
+}: {
+  groupRef: React.RefObject<THREE.Group>;
+  onReady: () => void;
+}) => {
+  const { camera, controls } = useThree();
+  const fitted = useRef(false);
+
+  useFrame(() => {
+    if (fitted.current) return;
+    const group = groupRef.current;
+    if (!group || group.children.length === 0) return;
+
+    const box = new THREE.Box3().setFromObject(group);
+    const sphere = new THREE.Sphere();
+    box.getBoundingSphere(sphere);
+
+    if (sphere.radius === 0) return;
+
+    const fov = THREE.MathUtils.degToRad(CAMERA_FOV);
+    const dist = sphere.radius / Math.sin(fov / 2);
+
+    camera.position.set(0, 0, dist);
+    camera.lookAt(0, 0, 0);
+    camera.updateProjectionMatrix();
+
+    if (controls) {
+      const orbit = controls as unknown as OrbitControlsImpl;
+      orbit.target.set(0, 0, 0);
+      orbit.update();
+    }
+
+    fitted.current = true;
+    onReady();
+  });
+
+  return null;
+};
+
 const Model = ({
   fileUrl,
   onLoad,
@@ -233,21 +275,37 @@ export const ThreeView: React.FC<ThreeViewProps> = ({
   onError,
   controlRef,
 }) => {
+  const [isReady, setIsReady] = React.useState(false);
+  const groupRef = useRef<THREE.Group>(null!);
+
+  const handleReady = useCallback(() => {
+    setIsReady(true);
+    onLoad?.();
+  }, [onLoad]);
+
   return (
     <div style={{ width, height, position: "relative", overflow: "hidden" }}>
+      {!isReady && (
+        <div style={{
+          position: "absolute", inset: 0,
+          backgroundColor: BACKGROUND_COLOR,
+          zIndex: 1,
+        }} />
+      )}
       <Canvas
         gl={{
           antialias: true,
           toneMappingExposure: 1.5,
           outputColorSpace: THREE.SRGBColorSpace,
         }}
-        camera={{ position: [0, 0, 5], fov: 40 }}
+        camera={{ position: [0, 0, 50], fov: CAMERA_FOV }}
         style={{ width: "100%", height: "100%" }}
         onError={(e: any) => onError?.(e.message)}
       >
         <AutoResize />
         <TouchController />
         {controlRef && <ZoomController controlRef={controlRef} />}
+        <FitCamera groupRef={groupRef} onReady={handleReady} />
         <color attach="background" args={[BACKGROUND_COLOR]} />
         <ambientLight intensity={0.8} />
         <directionalLight position={[30, 30, 30]} intensity={1.2} />
@@ -265,23 +323,18 @@ export const ThreeView: React.FC<ThreeViewProps> = ({
         <pointLight position={[0, 30, 0]} intensity={0.6} />
 
         <Suspense fallback={null}>
-          <Stage
+          <Center precise>
-            environment={null}
+            <group ref={groupRef}>
-            intensity={1}
+              <Model fileUrl={fileUrl} />
-            castShadow={false}
+            </group>
-            shadows={false}
+          </Center>
-            adjustCamera={true}
-            center={{ precise: true }}
-          >
-            <Model fileUrl={fileUrl} onLoad={onLoad} />
-          </Stage>
         </Suspense>
 
         <OrbitControls
           makeDefault
           enableZoom={true}
           enablePan={true}
-          target={[50, 50, 50]}
+          target={[0, 0, 0]}
           minDistance={1}
           maxDistance={100}
           enableDamping={true}

src/client/src/styles/ListOfSights.css

@@ -433,6 +433,7 @@
   padding: 8px 12px;
   white-space: nowrap;
   flex-shrink: 0;
+  border-bottom: 2px solid transparent;
   transition:
     background-color 0.1s ease,
     color 0.1s ease;
@@ -440,7 +441,7 @@
 
 .sight-frame-menu-point.active {
   font-weight: 600;
-  border-bottom: 2px solid #fff;
+  border-bottom-color: #fff;
 }
 
 .sight-frame-text-wrapper::-webkit-scrollbar-track {
@@ -594,7 +595,8 @@
 }
 
 .alphabet {
-  width: 100px;
+  width: 40px;
+  flex-shrink: 0;
   margin-right: 10px;
   padding-top: 24px;
   display: flex;
@@ -654,8 +656,9 @@
 }
 
 .alphabet-position {
-  display: inline-flex;
+  display: flex;
   justify-content: space-between;
+  width: 100%;
 }
 
 .transfer-button-container {