v1.3.0

Added

• A plugin for OpenDeck and Stream Deck (Tools/openpromptr-streamdeck) with
  keys for start/stop, rotation and flipping. Keys follow the app's live state
  and each can carry its own label.

Changed

• Startup and recovery options and the local HTTP API switch moved from the
  control window into a Settings window (⌘,).
• The control window shows Stop only while output is running, starting or
  recovering.

Fixed

• A missing target display no longer shows a red "Start failed" error; the app
  waits quietly for it, as it does for a missing source.
• Builds with the macOS 27 SDK no longer fail on a data-race diagnostic in
  FrameRenderer.