chore: add docker deployment files for coolify

.dockerignore

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+.git
+.gitignore
+.mypy_cache
+.venv
+__pycache__
+*.pyc
+tmp
+docs
+scripts
+sample.env

Dockerfile

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+FROM python:3.12-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PYTHONPATH=/app/src \
+    SQL_OPT_TEAM_PORT=7777
+
+WORKDIR /app
+
+COPY requirements.txt ./
+RUN pip install --upgrade pip && pip install -r requirements.txt
+
+COPY src ./src
+COPY kb ./kb
+
+RUN mkdir -p /app/tmp
+
+EXPOSE 7777
+
+CMD ["python", "-m", "uvicorn", "sql_optimizer_team.team_app:app", "--host", "0.0.0.0", "--port", "7777"]