feat: Implement RSSI service for iOS and Web platforms

- Added IosRssiService to handle synthetic RSSI data for iOS.
- Created WebRssiService to simulate RSSI scanning on the web.
- Defined shared types for WifiNetwork and RssiService in rssi.service.ts.
- Introduced simulation service to generate synthetic sensing data.
- Implemented WebSocket service for real-time data handling with reconnection logic.
- Established Zustand stores for managing application state related to MAT and pose data.
- Developed theme context and utility functions for consistent styling and formatting.
- Added type definitions for various application entities including API responses and sensing data.
- Created utility functions for color mapping and URL validation.
- Configured TypeScript settings for the mobile application.

ui/mobile/src/screens/LiveScreen/GaussianSplatWebView.tsx

@@ -0,0 +1,41 @@
+import { LayoutChangeEvent, StyleSheet } from 'react-native';
+import type { RefObject } from 'react';
+import { WebView, type WebViewMessageEvent } from 'react-native-webview';
+import GAUSSIAN_SPLATS_HTML from '@/assets/webview/gaussian-splats.html';
+
+type GaussianSplatWebViewProps = {
+  onMessage: (event: WebViewMessageEvent) => void;
+  onError: () => void;
+  webViewRef: RefObject<WebView | null>;
+  onLayout?: (event: LayoutChangeEvent) => void;
+};
+
+export const GaussianSplatWebView = ({
+  onMessage,
+  onError,
+  webViewRef,
+  onLayout,
+}: GaussianSplatWebViewProps) => {
+  const html = typeof GAUSSIAN_SPLATS_HTML === 'string' ? GAUSSIAN_SPLATS_HTML : '';
+
+  return (
+    <WebView
+      ref={webViewRef}
+      source={{ html }}
+      originWhitelist={['*']}
+      allowFileAccess={false}
+      javaScriptEnabled
+      onMessage={onMessage}
+      onError={onError}
+      onLayout={onLayout}
+      style={styles.webView}
+    />
+  );
+};
+
+const styles = StyleSheet.create({
+  webView: {
+    flex: 1,
+    backgroundColor: '#0A0E1A',
+  },
+});