⏳ v0.10.1 — Countdown Timer, Banner Auto-Dismiss, and Dropdown Positioning Fixes

What Was Added

• CountdownTimerComponent — SVG-based circular countdown timer. Accepts seconds and renders an animated ring that depletes over time. Fires midwest-countdown-timer:complete when it reaches zero.

• BannerComponent countdown option — Pass countdown: N to replace the static close button with a CountdownTimerComponent. The banner auto-closes when the timer completes.

• Banner countdown Lookbook preview — New countdown preview for interactive testing.

• Full unit test suites for both CountdownTimerComponent and BannerComponent countdown behavior, plus a banner_countdown_system_test.rb covering the full auto-dismiss lifecycle.

What Changed

• DropdownComponent CSS anchor positioning corrected — position-area values corrected to bottom span-right / bottom span-left (block axis first, per spec). Fixes incorrect dropdown placement on compliant browsers.

• DialogableConcern demo wired to new/create instead of index — Better demonstrates the real-world dialog pattern with a proper form flow.

• DialogComponent Stimulus controller — Minor fix to prevent stray events during dialog teardown.

What Was Removed

• dialogable :index in demo — Removed in favor of the new/create flow.

Dev Process

• Lint pass applied across all CSS and Ruby before tagging.