Summary

• Add a Hello, World! section to the Getting Started page — the simplest possible program showing fmt.print
• Add a Returns column to every stdlib module table so users know what type each function produces
• Add default arm to switch examples in the language reference
• Improve error handling section in the language reference
• Tighten the Getting Started module examples with output comments
• Improve stdlib intro example to show typeof alongside return values

Changes

• docs/app/docs/page.tsx — Hello World section + improved module examples
• docs/app/docs/stdlib/page.tsx — Returns column across all 12 modules
• docs/app/docs/language/page.tsx — switch default arm, error handling clarity

Test plan

• cd docs && bun dev — verify pages load without errors
• Getting Started page shows Hello World section before the REPL section
• Stdlib tables show three columns: Function / value, Description, Returns
• Language reference switch examples include default arm