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/install.sh

@@ -0,0 +1,59 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Cross-platform install script for OmniEmu
+# Detects OS/arch and downloads the appropriate artifact from GitHub releases
+
+REPO="mileswolfallen2/OmniEmu2.0"
+VERSION="${1:-latest}"
+
+die() {
+  echo "Error: $*" >&2
+  exit 1
+}
+
+detect_platform() {
+  local os arch
+
+  case "$(uname -s)" in
+    Darwin) os="mac" ;;
+    Linux)  os="linux" ;;
+    *)      die "Unsupported OS: $(uname -s)" ;;
+  esac
+
+  case "$(uname -m)" in
+    x86_64|amd64) arch="x64" ;;
+    arm64|aarch64) arch="arm64" ;;
+    *)            die "Unsupported arch: $(uname -m)" ;;
+  esac
+
+  echo "${os}-${arch}"
+}
+
+main() {
+  local platform
+  platform=$(detect_platform)
+  echo "==> Detected platform: $platform"
+
+  echo "==> Downloading OmniEmu for $platform..."
+  
+  local url
+  if [ "$VERSION" = "latest" ]; then
+    url="https://github.com/$REPO/releases/latest/download/OmniEmu-${platform}.AppImage"
+  else
+    url="https://github.com/$REPO/releases/download/v${VERSION}/OmniEmu-${platform}.AppImage"
+  fi
+
+  local dest="/tmp/OmniEmu.AppImage"
+  curl -fsSL "$url" -o "$dest" || die "Download failed"
+  chmod +x "$dest"
+
+  local install_dir="${HOME}/Applications"
+  mkdir -p "$install_dir"
+  mv "$dest" "${install_dir}/OmniEmu.AppImage"
+
+  echo "==> Installed to ${install_dir}/OmniEmu.AppImage"
+  echo "==> Run it with: ${install_dir}/OmniEmu.AppImage"
+}
+
+main