feat: Add Tart plugin for macOS virtualization

[luke]

Summary

• Adds a new Tauri plugin for managing macOS and Linux virtual machines using Tart
• Enables VM lifecycle management directly from XE Launcher on Apple Silicon Macs
• Provides a clean UI for creating, starting, stopping, and deleting VMs

Features

✅ Core VM Operations

• List all VMs with status and specifications
• Create VMs from OCI registry images
• Start/stop VMs with configurable options
• Delete VMs with confirmation
• Get detailed VM information

✅ Platform Support

• Apple Silicon (M1/M2/M3) detection
• macOS-only plugin with proper platform checks
• Graceful handling when Tart is not installed

✅ User Interface

• Clean Svelte 5 component with runes
• Installation guide for missing Tart
• Real-time VM status updates
• Modal dialog for VM creation
• Resource usage display (CPU, RAM, disk)

✅ Developer Experience

• TypeScript support with full type definitions
• Comprehensive test scripts
• No build step required (Bun/Vite handle TS directly)
• Following established plugin patterns

Technical Details

• Uses tokio::process::Command for async Tart CLI interaction
• Implements proper error handling with meaningful messages
• Follows the plugin system's three-tier architecture
• Includes permissions configuration for all commands

Testing

1. Install Tart: brew install cirruslabs/cli/tart
2. Run dev server: bun dev:tart
3. Navigate to the Tart tab in the app
4. Test VM operations

TODO (Phase 2)

• Progress tracking for long operations (VM creation, image pulls)
• VNC/SSH console integration
• VM templates and quick actions
• Resource usage monitoring

Notes

• Requires Tart to be installed separately (like Podman plugin)
• Only works on Apple Silicon Macs
• First-time image pulls may take several minutes

🤖 Generated with Claude Code