Facade Code 0.1.2-rc1

Release candidate for 0.1.2, for testing. The app inside still reports version 0.1.1.

Fixed since 0.1.1

• macOS: on macOS 15 and earlier the app icon showed as a white square with sharp corners, larger than the icons around it. It now has Apple's rounded body, margin and shadow. (#13)
• Windows: the user setup stopped halfway for user names of about nine characters or more ("MoveFile failed; code 3"), because some installed paths passed Windows' 260-character limit. The built-in Copilot extension now ships only the dependency files its VSIX ships, which keeps every installed path well under the limit. (#14)