feat: add Docker configuration

.dockerignore

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+__pycache__/
+*.pyc
+.git/
+.gitignore
+tests/
+docs/
+data/
+*.md
+.env
+.venv/

.gitignore

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+data/

Dockerfile

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+FROM python:3.14-slim
+
+# Install FFmpeg
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends ffmpeg && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application
+COPY app/ ./app/
+
+# Create data directory
+RUN mkdir -p /data
+
+ENV DATA_PATH=/data
+ENV FFMPEG_TIMEOUT=3600
+ENV HOST=0.0.0.0
+ENV PORT=8000
+
+EXPOSE 8000
+
+CMD ["sh", "-c", "uvicorn app.main:app --host $HOST --port $PORT"]

docker-compose.yml

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+services:
+  ffmpeg-worker:
+    build: .
+    ports:
+      - "8000:8000"
+    volumes:
+      - ./data:/data
+    environment:
+      - DATA_PATH=/data
+      - FFMPEG_TIMEOUT=3600