Chamfer v0.2.2

First public patch on the 0.2 line since the pi-coding-agent pivot. Highlights:

• Hosted agent runs server-side across Anthropic, OpenAI, and Google providers, so the browser stays a thin terminal.
• Free demo quota for chamferonline.com with per-account and global caps, plus a live credit meter and turn-start feedback that kills the cold-start freeze.
• Responsive mobile workspace layout.
• Chat renders math; models export from the viewer.
• Image attachments no longer drop a turn or fail to read; large images are downscaled client-side.

Install: npx chamfer@0.2.2