first pass?

Dockerfile

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+FROM python:3.11-slim
+
+WORKDIR /app
+
+COPY pyproject.toml .
+RUN pip install --no-cache-dir \
+    "fastapi>=0.111.0" \
+    "uvicorn[standard]>=0.29.0" \
+    "pydantic-settings>=2.3.0" \
+    "aiosqlite>=0.20.0" \
+    "httpx>=0.27.0" \
+    "structlog>=25.0.0" \
+    "itsdangerous>=2.2.0"
+
+COPY . .
+
+ENV PYTHONPATH=/app
+ENV TZ=America/Los_Angeles
+
+EXPOSE 8000
+
+CMD uvicorn backend.main:app --host 0.0.0.0 --port 8000