[rewrite] Major changes to code - switched to postgres, added initial backend docker files

backend/Dockerfile

@@ -0,0 +1,25 @@
+# Base Image
+FROM python:3.13
+
+RUN pip install poetry
+
+# Environment variables
+ENV PYTHONUNBUFFERED=1
+
+# Set working directory
+WORKDIR /app/
+
+# Copy dependency files first to leverage caching
+COPY pyproject.toml poetry.lock /app/
+
+# Copy the rest of the application
+COPY ./app /app/app
+
+# Ensure dependencies are installed correctly
+RUN poetry install --no-interaction --no-ansi --without dev
+
+# Expose port for FastAPI
+EXPOSE 8000
+
+# Command to run the app
+CMD ["poetry", "run", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "4"]