feat: add Dockerfile and docker-compose for containerized deployment

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

Dockerfile

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+# -- Build stage --
+FROM python:3.12-slim AS base
+
+# Prevent Python from writing .pyc files and enable unbuffered output
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+# Install dependencies first (layer caching)
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY app/ ./app/
+COPY config/ ./config/
+
+# Create data directory for SQLite
+RUN mkdir -p /app/data
+
+EXPOSE 8000
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]

docker-compose.yaml

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+services:
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: sneakyswole
+    ports:
+      - "8000:8000"
+    volumes:
+      - sneakyswole-data:/app/data
+    env_file:
+      - .env
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s
+
+volumes:
+  sneakyswole-data:
+    driver: local