Refactor Tauri Integration to Use Platform Context

- Replaced direct Tauri API calls with a unified platform context across multiple components, enhancing code maintainability and readability.
- Removed the deprecated tauri.ts file, consolidating platform-related logic into the new PlatformContext.
- Updated components such as App, AudioPlayer, and ServerSettings to utilize the new platform context for lifecycle management and server interactions.
- Improved platform detection and handling for audio playback and system audio capture functionalities.
- Ensured consistent error handling and user feedback across the application when interacting with platform-specific features.

web/src/platform/audio.ts

@@ -0,0 +1,27 @@
+import type { PlatformAudio, AudioDevice } from '@/platform/types';
+
+export const webAudio: PlatformAudio = {
+  isSystemAudioSupported(): boolean {
+    return false; // System audio capture not supported in web
+  },
+
+  async startSystemAudioCapture(_maxDurationSecs: number): Promise<void> {
+    throw new Error('System audio capture is only available in the desktop app.');
+  },
+
+  async stopSystemAudioCapture(): Promise<Blob> {
+    throw new Error('System audio capture is only available in the desktop app.');
+  },
+
+  async listOutputDevices(): Promise<AudioDevice[]> {
+    return []; // No native device routing in web
+  },
+
+  async playToDevices(_audioData: Uint8Array, _deviceIds: string[]): Promise<void> {
+    throw new Error('Native audio device routing is only available in the desktop app.');
+  },
+
+  stopPlayback(): void {
+    // No-op for web
+  },
+};