🌀 v0.9.0 — Loading States, Accessibility Overhaul, and Playwright

What Was Added

• LoadingIconComponent — Animated loading indicators with 11 SVG variants: audio, ball-triangle, bars, circles, grid, oval, puff, rings, spinning-circles, tail-spin, three-dots.

• Loading states on ButtonComponent and forms — Buttons enter a disabled loading state on click; forms enter a loading state on submit. Prevents double-submits.

• Accessibility features on DropdownComponent — Full keyboard navigation (arrow keys, Enter, Escape) with a new keyboard_navigation preview.

• midwest:lookbook:install rake task — Mount the Midwest component docs (Lookbook) at /midwest-lookbook with one command.

• Wizard/Carousel step blockers — CarouselComponent in wizard mode blocks scroll, wheel, and touch-swipe events from advancing past locked steps.

What Changed

• Broad accessibility audit across 15+ components. Accessibility gaps reduced from 14 down to 4.
• FileComponent updated with improved controller behavior; new test fixtures added.
• ButtonComponent nil-guard pattern fixed; assorted bug fixes across AvatarComponent, DialogComponent, ProseComponent, SelectComponent, CardComponent, PopoverComponent.

What Was Removed

• Ruby 4.0 preview dropped from CI. Matrix now targets Ruby 3.3 and 3.4 only.
• Stubbed no-op Stimulus controllers deleted for AvatarComponent, CalloutComponent, DropdownItemComponent, SwitchComponent, and VideoComponent.

Dev Process

• Selenium replaced with Playwright — System tests now use capybara-playwright-driver. Cross-browser testing (Chromium, Firefox, WebKit) via BROWSER= env var or bin/test --browser <name>.
• Install scripts now prefer npm over Yarn.
• bin/release now invokes the claude CLI to assist with generating release notes.