Add Bun.$ feature parity plus unique advantages for Node.js users

[konard]

Goal: Beat Bun.$ by providing their features to Node.js users plus unique advantages

Bun.$ Advantages:

• Native runtime integration (0KB bundle)
• Very fast performance
• Built-in to Bun

Our Advantages:

• ✅ Works in Node.js (not just Bun)
• ✅ Real-time streaming (vs buffered)
• ✅ Virtual commands engine (revolutionary)
• ✅ EventEmitter pattern (vs none)
• ✅ Async iteration (vs none)
• ✅ Mixed pipelines (vs basic)
• ✅ Advanced signal handling
• ✅ 18 built-in commands
• ✅ Public domain license

Implementation:

• Template literal compatibility
• .text() method support
• Add $.bun compatibility mode for Node.js users
• Performance benchmarks vs Bun.$
• Show streaming advantages
• Document Node.js portability benefits
• Virtual commands examples
• Cross-runtime compatibility guides

Key Selling Points:

• Use Bun.$ features in Node.js
• Get streaming + events on top
• Add virtual commands for extensibility
• Write once, run everywhere (Bun + Node)

Success Metrics:

• Full Bun.$ API compatibility in Node.js
• Performance within 10% of Bun.$
• Unique features demonstration