v2.17.8: Higher Recall + Python, JS, & Swift Improvements

This is a very warm release! It doesn't break anything, doesn't change too much, but will be beneficial to all users - big or small - from indie devs to larger orgs (AFAIK every major AI lab now uses USearch), and is mostly driven by the community, not by me. So thanks to everyone 🤗

• @ycw66 found a core algorithmic issue, which yielded a 30% recall improvement in my testing 👏
• @frank-lsf suggested a new API to forward variadic arguments in Index.restore in Python 👏
• @abetomo noticed the error handling issues in newly multi-threaded JS batched methods 👏
• @mapleFU fixed radius update issue when passing filter predicates to the core engine 👏
• @brittlewis12 fixed Swift compilation issues with half-precision Float16 and visionOS 👏