[Enhancement] Add shareable URL that encodes current settings in URL hash

[magic-peach]

Overview

Allow users to share a URL that encodes all current settings (preset, quality, speed, trim, etc.) in the URL hash fragment. Another user opening this URL would have the same settings pre-loaded.

Implementation

// Save to URL
const params = new URLSearchParams(recipe)
window.location.hash = params.toString()

// Load from URL
const hash = window.location.hash.slice(1)
const saved = Object.fromEntries(new URLSearchParams(hash))

Note: The video file itself cannot be shared (privacy), only settings.

Acceptance Criteria

• URL updates as settings change
• Loading a settings URL pre-populates controls
• 'Copy settings link' button
• Settings URL is human-readable

[aksharsawhney74-rgb]

Hi @magic-peach ,

I would love to work on this performance optimization issue for GSSoC '26!
Could you please assign this to me?

Thanks,
Akshar

[magic-peach]

@aksharsawhney74-rgb please star the repo