Shutdown:
- Call litelib_shutdown() to stop Rust background threads on exit
- Add 15-second timeout on wallet save dialog to prevent hang on close
- Add litelib_shutdown FFI declaration in header and controller
UI Contrast (dragonx theme):
- Fix disabled buttons: white text was invisible on white background
- Add QWizard, QMessageBox, QTextBrowser, QPlainTextEdit styling for dark theme
- Add QCheckBox, QRadioButton, QDialogButtonBox contrast rules
- Fix seed word verification buttons: dark themed with explicit text color
- Fix chat bubbles: replace light backgrounds with dark themed colors
- Fix Terms of Service link color: #0000ff -> #6699ff for visibility
- Remove duplicate conflicting QLabel#lblMessage CSS rule
Add v1.1.0 release notes with checksums