Release v3.28.5

[mrubens]

Release preparation for v3.28.5. This PR includes the changeset and any necessary documentation updates.

Changes in this release:

• Add an announcement for Supernova
• Wrap code blocks by default for improved readability
• Fix: Resolve duplicate rehydrate during reasoning
• Fix: Support dash prefix in parseMarkdownChecklist for todo lists
• Fix: Apply tiered pricing for Gemini models via Vertex AI
• Update SambaNova models to latest versions
• Update privacy policy

The GitHub Actions workflow will automatically create a version bump PR when this is merged to main.

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Important

Release v3.28.5 includes bug fixes, model updates, and documentation improvements.

• Fixes:
  • Resolve duplicate rehydrate during reasoning; centralize rehydrate and preserve cancel metadata.
  • Support dash prefix in parseMarkdownChecklist for todo lists.
  • Apply tiered pricing for Gemini models via Vertex AI.
• Updates:
  • Update SambaNova models to latest versions.
  • Update privacy policy to allow occasional emails.
• Documentation:
  • Add an announcement for Supernova.
  • Wrap code blocks by default for improved readability.

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[ghost]

Found some minor consistency issues that could be improved in the changeset file.