feat: add core functionality for emulator management and game library

- Implement IPC handlers for system info, emulator management, ROM scanning, and settings.
- Create platform utilities to retrieve system information.
- Develop preload script to expose API to renderer process.
- Establish settings management with file read/write capabilities.
- Build main application layout with React, including sidebar navigation and multiple pages (Dashboard, Emulators, Library, Settings).
- Design and implement styles for a cohesive user interface.
- Add type definitions for shared data structures between main and renderer processes.
- Configure TypeScript and Vite for building the application.

scripts/build-mac.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Build OmniEmu for macOS
+# Usage: ./scripts/build-mac.sh [arch]
+#   arch: x64 | arm64 (default: current arch)
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
+
+cd "$PROJECT_DIR"
+
+ARCH="${1:-$(uname -m)}"
+case "$ARCH" in
+  x86_64) ARCH_FLAG="x64" ;;
+  arm64)  ARCH_FLAG="arm64" ;;
+  *)      echo "Unknown arch: $ARCH"; exit 1 ;;
+esac
+
+echo "==> Installing dependencies..."
+npm install
+
+echo "==> Building for macOS ($ARCH_FLAG)..."
+npm run build
+
+echo "==> Packaging for macOS ($ARCH_FLAG)..."
+npx electron-builder --mac --arm64="$([ "$ARCH_FLAG" = "arm64" ] && echo true || echo false)" --x64="$([ "$ARCH_FLAG" = "x64" ] && echo true || echo false)"
+
+echo "==> Done! Artifacts in ./release/"