v0.13.7

Added

• Rotating usage tips above the chat input while the agent works, with clickable links.
  Tips hide during dialogs and stay out of conversation history.

Changed

• The context footer shows remaining conversation space after startup prompts and tools.
  Provider measurements and calibrated estimates inform the gauge, while capacity warnings
  continue to use the full request budget.
• Ctrl+J is the multiline input shortcut; Enter submits. The Alt+Enter alias is removed.
• Updated public documentation and contributor guidance.

Fixed

• Setup continuation hints stay visible above the footer on small terminals and long screens.
• Benchmark wheel builds preserve local build metadata and existing build artifacts, including
  when a build fails or is interrupted.