ดาวน์โหลด codeg 0.20.1

- feat(grok): Bring your own Grok endpoint. Grok Build settings gain a "Custom model (BYO endpoint)" section — point it at any Grok-compatible endpoint with your own model id, base URL, API key, backend, context window, and session auto-compact threshold. Leave the URL blank to fall back to xAI's official endpoint.
- feat(grok): Grok no longer updates itself in the background. The Grok CLI launches with its self-updater disabled, so it keeps running the pinned build instead of silently swapping to a newer one — and its interactive approval prompt stays intact unless you've switched to always-approve.
- feat(grok): The context-window meter now works for Grok sessions. Grok conversations show how much of the model's context window you've used, with the window sized per Grok model (from 256K up to 2M) and paired with Grok's running token count — just like every other agent.
- fix(icon): Monochrome agent icons no longer look dimmed. The OpenCode, Hermes, Grok, Cline, and CodeBuddy marks now render at full strength in the agent selector, sidebar, and status bar, instead of appearing faint until you hover over or select them.
- chore(agents): Bundled agents refreshed. CodeBuddy Code (2.118.2) and Kimi Code (0.23.5) were bumped to their latest builds.