Add microservices, web UI, and replay tooling

Dockerfile.web

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+FROM python:3.11-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+COPY pyproject.toml README.md /app/
+COPY catan /app/catan
+
+RUN pip install --no-cache-dir --upgrade pip \
+    && pip install --no-cache-dir --index-url https://download.pytorch.org/whl/cpu torch \
+    && pip install --no-cache-dir -e .
+
+ENV CATAN_DATA_DIR=/app/data
+ENV CATAN_MODELS_DIR=/app/models
+
+EXPOSE 8000
+
+CMD ["uvicorn", "catan.web.app:app", "--host", "0.0.0.0", "--port", "8000"]