- Replace custom Observable protocol and @Published with Apple's @Observable macro
- Add withObservationTracking in renderToBuffer for automatic per-property dependency tracking
- Add type-based @Environment(Type.self) and .environment(object) for observable objects
- Add ObjectEnvironmentModifier for injecting observable objects into the environment
- Add needsCacheClear flag to AppState for thread-safe cache invalidation
- Add cross-platform test script (scripts/test-linux.sh) for Docker-based Linux verification
- Add DemoAppHeader with system info display (OS, version, architecture)
- Consolidate Example App: extract ImageDemoHelpers, KeyboardHelpSection, ValueDisplayRow
- Add pre-push verification rule to CLAUDE.md
- Verified on both macOS and Linux (swift:6.0 container), 1155 tests passing
- Add regression test for two Lists in HStack sharing width correctly
- Test verifies both lists render, buffer fits available width, consistent line widths
- Add horizontal padding to TextFieldPage and SecureFieldPage
- TextField now expands to fill available width (SwiftUI behavior)
- Label parameter is for accessibility only, not rendered visually
- Use prompt: parameter for placeholder text
- Update example app to use prompt: correctly
- SecureField also expands to fill available width
- Add cursorColor to Palette protocol with HSL-computed values for all SystemPalette presets
- Create TextCursorStyle with shapes (block, bar, underscore) and animations (none, blink, pulse)
- Add .textCursor(_:) View modifier propagating through environment
- Update TextField and SecureField to use cursorColor and respect cursor style
- Add 17 tests for TextCursorStyle
phranck