feat: bootstrap backend with docker and healthcheck

backend/Dockerfile

@@ -0,0 +1,10 @@
+FROM python:3.11-slim
+
+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"]

backend/app/main.py

@@ -0,0 +1,7 @@
+from fastapi import FastAPI
+
+app = FastAPI(title="Card Game Backend")
+
+@app.get("/health")
+def health_check():
+    return {"status": "ok"}

backend/requirements.txt

@@ -0,0 +1,5 @@
+fastapi
+uvicorn
+sqlalchemy
+psycopg2-binary
+asyncpg