terminal-browser Adds SSH Mode for Remote Access

This is a meaningful upgrade for remote development, shifting SSH from a transport layer into a practical local browser workflow.

• –Runs Chromium locally while proxying remote network requests, keeping rendering and input responsive
• –Makes remote localhost sites accessible without manual tunnels or port-forwarding setup
• –App mode enables remote code-server or terminal-code backends with local terminal interfaces
• –Agent-compatible browser controls make the workflow useful for AI coding agents
• –Linux support broadens the project beyond its original Apple Silicon audience