fix(landing): support swiping customer stories

[waleedlatif1]

Summary

• Add touch swipes, horizontal trackpad/mouse-wheel gestures, and Shift+wheel navigation to the featured customer carousel using its existing slide selection and transitions.
• Preserve vertical scrolling, browser zoom, preview taps, keyboard controls, and video playback. Ignore short, vertical, cancelled, and multi-touch gestures, and stop at either end.
• Accumulate small wheel deltas and advance once per wheel gesture, resetting after an idle gap to avoid momentum-driven repeated navigation.

Type of Change

• Bug fix

Testing

• 24 carousel tests passed, covering touch and wheel gestures, delta units, momentum, browser-default preservation, listener cleanup, and media continuity.
• App type check, repository lint and lint:check, all 46 audits, block registry, and docs manifest checks passed.
• Browser-checked layouts from 320px to 1280px, both themes, keyboard navigation, scrolling, and active video playback. Verified live horizontal wheel navigation in both directions and independent vertical page scrolling.
• Touch and Shift+wheel edge cases covered with automated events; physical-phone testing remains outstanding.
• Local production build intentionally not run.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced by the change
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Sep 9, 2026 4:39am UTC

[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge with no actionable correctness, security, or repository-rule issues identified.

Summary

• Tracks one touch by identifier and navigates only after a sufficiently long, predominantly horizontal gesture.
• Ignores vertical, short, cancelled, unrelated, and multi-touch gestures.
• Preserves vertical panning, pinch zoom, preview taps, endpoint bounds, and video state.
• Adds focused tests for gesture classification, navigation bounds, preview interaction, and media continuity.