Text Stagger catalog preview clips the first and last words #3253

Describe the bug

The Text Stagger component preview scales the demo phrase beyond the 1920×1080 composition. "Build" and "fast" are clipped at opposite frame edges. The small preview label also fails the browser contrast gate at 2.46:1.

Reproduction

1. Open the Text Stagger component.
2. Play the preview.
3. Observe the first and last words extending beyond the frame.

Source reproduction: registry/components/text-stagger/demo.html

Expected behavior

The full "Build motion systems fast" phrase remains visible throughout playback, and the preview passes the contrast check.

Actual behavior

The demo uses scale(2.6), making the phrase wider than the composition. Its label color also has only 2.46:1 contrast against the background.

Environment

Hosted HyperFrames Catalog and the current main branch at 3670e9a92. Reproduced in Chromium and the local HyperFrames render pipeline.