Visual cleanup of the Logs sidebar (unified logs):
- Restyle the "Go back to old logs" and "Try Unified Logs" banners as
full-bleed bordered strips (no card), with an icon-only switch-back
button and a tooltip
- Add a "Beta" badge next to the "Logs" sidebar title
- Rename the product from "Logs & Analytics" to "Logs"
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## Summary by CodeRabbit
* **New Features**
* Added Unified Logs banner with “Try Unified Logs” and “More
information” actions, plus a “Go back to old logs” utility layout.
* Show a **“Beta”** badge for Unified Logs eligibility.
* **UX Updates**
* Updated the Logs experience to consistently display under the
**“Logs”** product layout.
* **Tests / Documentation**
* Updated end-to-end checks and examples to expect the **“Logs”**
heading text exactly.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: kemal <hello@kemal.earth>
