- Create /email/unsubscribe/[id] route with page and component
- Add share-id validation and 404 on invalid links
- Add bilingual translations (English/Croatian)
- Implement unsubscribe UI with success/error states
- Call unsubscribeTenantEmail server action on button click
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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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