feat: auto-run migrations via psql init container on scheduler startup

docker/Dockerfile

@@ -8,6 +8,7 @@ ENV PYTHONPATH=/app
 RUN apt-get update && apt-get install -y --no-install-recommends \
     gcc \
     libpq-dev \
+    postgresql-client \
     curl \
     && rm -rf /var/lib/apt/lists/*
 
@@ -19,6 +20,7 @@ RUN pip install --no-cache-dir -r requirements.txt
 COPY services/ /app/services/
 COPY tests/ /app/tests/
 COPY conftest.py /app/conftest.py
+COPY infra/migrations/ /app/infra/migrations/
 
 RUN useradd -m -u 1000 stonks && \
     chown -R stonks:stonks /app