Removed proxying from pip in Dockerfile, added K8S files

Dockerfile.bitproxy

@@ -0,0 +1,26 @@
+FROM python:3.13-slim AS baustelle
+RUN mkdir /app
+WORKDIR /app
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+RUN pip install --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org --proxy http://proxy-bvcol.admin.ch:8080  --upgrade pip
+COPY requirements.txt /app/
+RUN pip install --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org --proxy http://proxy-bvcol.admin.ch:8080  --no-cache-dir -r requirements.txt
+
+FROM python:3.13-slim
+RUN useradd -m -r appuser && \
+    mkdir /app && \
+    chown -R appuser /app
+
+COPY --from=baustelle /usr/local/lib/python3.13/site-packages/ /usr/local/lib/python3.13/site-packages/
+COPY --from=baustelle /usr/local/bin/ /usr/local/bin/
+RUN rm /usr/bin/tar
+RUN rm /usr/lib/x86_64-linux-gnu/libncur*
+WORKDIR /app
+COPY --chown=appuser:appuser . .
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+USER appuser
+EXPOSE 8000
+CMD ["gunicorn","--bind","0.0.0.0:8000","--workers","3","VorgabenUI.wsgi:application"]
+