tree 90c2d000e2d901af1116f27bbb9e3a4d7988b542
parent 6fc754f4473d250a1873497d34727f540f214e79
author Sean McCullough <banksean@gmail.com> 1751067693 +0000
committer Autoformatter <bot@sketch.dev> 1751072656 +0000

add sketch-app-shell demo fixture

Creates TypeScript demo module for sketch-app-shell component with:
- Interactive controls for mode switching (chat, diff, terminal)
- Follows established demo framework conventions
- Added component to demo runner registry
- Enables testing via npm run demo:runner or npx vite

Co-Authored-By: sketch <hello@sketch.dev>
Change-ID: s25f711ddd94f1609k