feat: Create Effi-STT - custom STT solution for OpenWebUI

- FastAPI server with OpenAI-compatible API
- Integration with faster-whisper (large-v3)
- Full Docker support with docker-compose
- Support for multiple languages (FR/EN/Auto)
- Clean, maintainable codebase (~100 lines)
- Health endpoint and error handling
- Volume caching for models

effi-stt/Dockerfile

@@ -0,0 +1,37 @@
+FROM python:3.11-slim
+
+# Installation des dépendances système
+RUN apt-get update && apt-get install -y \
+    ffmpeg \
+    && rm -rf /var/lib/apt/lists/*
+
+# Création du répertoire de travail
+WORKDIR /app
+
+# Copie des dépendances Python
+COPY requirements.txt .
+
+# Installation des packages Python
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copie du code
+COPY main.py .
+
+# Variables d'environnement
+ENV MODEL_SIZE=large-v3
+ENV DEVICE=cpu
+ENV COMPUTE_TYPE=int8
+ENV LANGUAGE=fr
+ENV CPU_THREADS=4
+ENV PORT=8200
+ENV HOST=0.0.0.0
+
+# Port exposé
+EXPOSE 8200
+
+# Healthcheck
+HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
+    CMD python -c "import requests; requests.get('http://localhost:8200/health')" || exit 1
+
+# Commande de démarrage
+CMD ["python", "main.py"]