fix(magic-card): restore border glow clipping in gradient mode

[Yeom-JinHo]

Description

This PR restores the original glowing border behavior in MagicCard gradient mode.
The regression came from rendering the border gradient on an absolutely positioned child, which broke the padding-box / border-box clipping and caused the glow to disappear into the card background.

Changes

• Moved the gradient border background back to the root motion.div so the border ring renders correctly again
• Kept the gradient / orb mode API introduced in the earlier update
• Preserved the inner background and orb overlay layering
• Regenerated the related registry artifacts

Motivation

After the previous MagicCard update, the existing hover border glow no longer rendered as intended.
This change fixes that regression while keeping the newer mode-based API intact.

Breaking Changes

None.

Screenshots

Device / Browser / Viewport: MacBook Pro / Chrome / Desktop

Before	After

[vercel]

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