Add Autobrowser to the app directory

[vinlim]

Auto Browser sits in your Chrome side panel. Describe a task in plain English, it sees the page, acts on your behalf, and reports back. No scripts, no servers, no vendor lock-in.

What it does:

• Browser-native Agent as Chrome Extension
• Agent-agnostic (BYOK with OpenRouter)
• Private by default - No telemetry, no analytics, no backend server
• Works on any web page, favor WebMCP

Why it belongs:

• User can use any agentic model from OpenRouter
• BYOK architecture