bubo v0.8.5

bubo 0.8.5

This release is about a calmer screen: fewer things competing for attention, a
settings tab that actually explains an update, and a compact mode that reads
like a conversation.

What's new

• Updates tab: updates moved out of System into their own settings tab. When
  a new version is available, the card now shows the actual changes from the
  release notes instead of the raw Markdown body.
• Floating learning actions: new chat, history, progress and practice float
  in a small pill under the bubo title, so the header stays a single row.
• Appearance in System: message text size and theme now live in the System
  tab, next to the behavior settings. The settings tabs wrap instead of hiding
  tabs behind a horizontal scroll.
• Slimmer scrollbars: a global scrollbar style with a small thumb and a
  wider invisible hit area, plus contained overscroll so the chat does not
  bounce.
• Compact mode: your messages sit on the right and bubo on the left, like
  the full chat, and the mascot is larger.
• Beginner challenge fixed: bubo no longer asks you to repeat an English
  phrase it just showed you. When you ask how to say something, it still gives
  a hint first and keeps the answer hidden.

Upgrade

Nothing to do. Settings → Atualizações offers 0.8.5 like any other version.

Build

• Version 0.8.5, build 1.
• x64 installer signed with the updater key (not Authenticode); SmartScreen may
  warn on first run.
• Update packages are verified with the Tauri updater signing key.

Verification

• 88 Vitest tests, 78 Rust tests, 34 Playwright tests, clippy, fmt, and build
  clean, locally and in CI.