Phase 4 STT pipeline implemented — Silero VAD + faster-whisper — still not working well at all

stt/Dockerfile.stt

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+FROM nvidia/cuda:12.1.0-base-ubuntu22.04
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    python3.11 \
+    python3-pip \
+    ffmpeg \
+    libsndfile1 \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements
+COPY requirements.txt .
+
+# Install Python dependencies
+RUN pip3 install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Create models directory
+RUN mkdir -p /models
+
+# Expose port
+EXPOSE 8000
+
+# Set environment variables
+ENV PYTHONUNBUFFERED=1
+ENV CUDA_VISIBLE_DEVICES=0
+ENV LD_LIBRARY_PATH=/usr/local/lib/python3.11/dist-packages/nvidia/cudnn/lib:${LD_LIBRARY_PATH}
+
+# Run the server
+CMD ["uvicorn", "stt_server:app", "--host", "0.0.0.0", "--port", "8000", "--log-level", "info"]