dockerize (did it myself this time!) and rearrange directories

Dockerfile

@@ -0,0 +1,18 @@
+FROM python:3.12-slim
+
+VOLUME [ "/app/assets" ]
+
+WORKDIR /app
+
+ENV FLASK_APP=server.py
+ENV FLASK_RUN_HOST=0.0.0.0
+ENV FLASK_RUN_PORT=1387
+
+COPY requirements.txt .
+RUN pip install -r requirements.txt
+
+COPY server.py .
+
+EXPOSE 1387/tcp
+
+CMD ["flask", "run", "--debug"]