feat(realestate-lab): 프로젝트 스캐폴딩 — Dockerfile, requirements, init

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

realestate-lab/Dockerfile

@@ -0,0 +1,9 @@
+FROM python:3.12-alpine
+
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]