Dashboard Tailwind v4 and proxy hardening

Daytona 0.189.0 modernizes the dashboard foundation and hardens proxy and API behavior against connection edge cases, credential exposure, and sandbox creation fan-out.

Features

Dashboard: tailwind v4

Dashboard: table col resize and config menu

Docs: add async python sdk variable

Guides, Docs: add SGLang GPU model-serving guide

Proxy: proxy connection handling hardening

Fixes

API: disable Access-Control-Allow-Credentials on /api

API: promise rejection handling in snapshot and sandbox manager

API: stop releasing sandbox state-change lock on job completion to avoid create fan-out

Daemon: register DELETE route without trailing slash

Docs: remove android / update gpu

Python SDK: async client connection resilience and error mapping

Chores

sync go.sum for v0.188.0

Docker: add yarn dep build dependencies

Docs: add toolbox API URL pattern and auth to OpenAPI spec, document Go SDK prerequisite

Go SDK: bump to v0.189.0