feat(deployment): Optimize Dockerfile

7project/src/backend/Dockerfile

@@ -1,8 +1,16 @@
-FROM python:3.11-trixie
+FROM python:3.11-slim
 
 WORKDIR /app
+
+RUN useradd --create-home --shell /bin/bash app
+
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
+
 COPY . .
+RUN chown -R app:app /app
+
+USER app
+
 EXPOSE 8000
 CMD ["sh", "-c", "alembic upgrade head && uvicorn app.app:fastApi --host 0.0.0.0 --port 8000"]