Add CLI command development guide to CONTRIBUTING.md

CONTRIBUTING.md

@@ -230,6 +230,51 @@ src/
    ```
 3. Update README.md keyboard shortcuts table
 
+### Adding a New CLI Command
+
+The interactive terminal supports custom CLI commands for Roblox development.
+
+1. Edit `src/lib/cli-commands.ts`
+2. Add your command to the `commands` object:
+   ```typescript
+   mycommand: {
+     name: 'mycommand',
+     description: 'Description of what it does',
+     usage: 'mycommand [args]',
+     aliases: ['mc', 'mycmd'], // Optional
+     execute: async (args, context) => {
+       // Access current code, files, etc. from context
+       // context.currentCode
+       // context.currentFile
+       // context.files
+       // context.setCode()
+       // context.addLog()
+
+       // Perform your command logic
+
+       return {
+         success: true,
+         output: 'Command output',
+         type: 'info', // or 'log', 'warn', 'error'
+       };
+     },
+   }
+   ```
+
+#### Available Context:
+- `context.currentCode` - Current editor code
+- `context.currentFile` - Active file name
+- `context.files` - File tree array
+- `context.setCode(code)` - Update editor code
+- `context.addLog(message, type)` - Add terminal log
+
+#### Command Features:
+- Command aliases for shortcuts
+- Argument parsing (args array)
+- Context-aware execution
+- Error handling with toast notifications
+- Special `__CLEAR__` output to clear terminal
+
 ## Performance Guidelines
 
 - Use React.lazy() for code splitting