TypeScript support to match competitors' TS advantages

[konard]

Goal: Eliminate TypeScript as a competitive disadvantage

Current Status: 🔄 Coming soon (vs competitors' ✅ Full support)

Competitor TypeScript Status:

• ✅ Bun.$: Built-in TypeScript
• ✅ execa: Full TypeScript support
• ✅ zx: Full TypeScript support
• ✅ cross-spawn: Built-in types
• 🟡 ShellJS: Community types

Implementation:

• Generate TypeScript definitions for all APIs
• Add virtual commands TypeScript support
• Type-safe pipeline definitions
• Generic type support for streaming
• Examples with full type safety
• IDE autocomplete support

Unique TypeScript Features:

• Type-safe virtual command registration
• Streaming with proper generic types
• Pipeline type inference
• Event type definitions

Success Metrics:

• Full TypeScript parity with competitors
• Unique type features for virtual commands
• IDE integration working perfectly