v1.6.0

• HEP 18: Add /asset-listen to wait for changes to an asset.
• Restore windows support
  • Powershell as default shell
  • Use ADS as xattr substitute.
  • Add shell & machine-info to tool schema.
• Remove user-confirmation for !hai tool.
• /load-url extracts articles & converts to markdown
• Attempted fix for syntax highlighting causing line clobbering.
• Updated popular models in /cost
• When init-ing task, ignore /ai if no API key.
• Add trust-mode for tasks /task(trust=true) <name> to skip confirmations.
• Human sort for asset auto-completions.