1. What did I do yesterday?Prepared the interpretation plugin for multiple interpreter backends without changing organizer-facing behavior today. SUSI still works the same way sign in once per event, pick interpreter per room, start/stop sessions. This PR moves SUSI-specific logic behind a backend registry so a future interpreter (e.g. VoxBento) can plug in without rewriting views, forms, and room validation.
New backend architecture:
2. What do I plan to do today?
duplicate interpretation logic from core eventyay into interpretation plugin
update interpretation plugin to work with latest susi translator version
3. What is blocking me from making progress?
No Blocker at the moment