🚀 Added a Translation Pipeline

[leagrieder]

This PR introduces a translation interface for NLLB-200 with fasttext detection.

✨ Key Contributions

• Translator (translator.py) for multimeditron inference

  • Automatic language detection with fastText (80% confidence threshold)
  • Smart routing to prevent mistranslation of ambiguous inputs
  • Bidirectional medical translation (user language ↔ English)
  • Compatible with base and fine-tuned NLLB-200 models

• Consensus-based data generation

  • Synthetic parallel medical corpora built from multi-model translation agreement
  • Scalable approach for low-resource languages

• Fine-tuning & evaluation framework

  • Scripts for NLLB-200 medical fine-tuning
  • Comprehensive experiments on translation quality and downstream medical QA