Allow users to rebind or disable the Cmd+Left / Cmd+Right keybindings for the Rewind feature via keybindings.json, as they are currently hardcoded and conflict with standard macOS window/tab switching shortcuts.
**Bug Description** Title: Allow rebinding or disabling Cmd+Left / Cmd+Right (Rewind) via keybindings.json Body: Description Cmd+Left and Cmd+Right open the Rewind feature (step back/forward through conversation messages). This shortcut is hardcoded and not present in ~/.claude/keybindings.json, so it cannot be rebound or disabled. This likely affects most macOS users, because Cmd+Option+Left / Cmd+Option+Right is the standard macOS shortcut for switching between windows/tabs across virtually all applications. When pressing Cmd+Option+Left/Cmd+Option+Right, Claude Code captures the Cmd+Left/Cmd+Right portion of the keystroke and triggers Rewind unexpectedly. This makes the standard macOS window-switching workflow unreliable while Claude Code is focused. Expected behavior The Rewind keybinding should be configurable via ~/.claude/keybindings.json, like all other shortcuts — allowing users to rebind or disable it. **Environment Info** - Platform: darwin - T