Rewrote the Flask server into a FastAPI one that has Prometheus metrics and connects to a database

Dockerfile

@@ -0,0 +1,11 @@
+FROM python:3.12-slim
+
+COPY requirements.txt .
+
+RUN pip install --no-cache-dir -r requirements.txt
+
+WORKDIR /app
+
+COPY src/ /app/
+
+ENTRYPOINT ["python","main.py"]