Add Deepgram MCP Server - speech-to-text and TTS

Python FastMCP server wrapping Deepgram API for audio transcription
and text-to-speech. Supports 125+ multilingual voices, large file
chunking via FFmpeg, formatted markdown output with speaker
diarization, and Docker deployment on port 8009.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

deepgram-mcp/Dockerfile

@@ -0,0 +1,21 @@
+FROM python:3.11-slim
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends ffmpeg curl && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY src/ src/
+
+ENV PYTHONPATH=/app/src
+
+EXPOSE 8009
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
+    CMD curl -f http://localhost:8009/health || exit 1
+
+CMD ["python", "-m", "deepgram_mcp.server"]