new attempt for arm builds

Dockerfile

@@ -1,16 +1,10 @@
 # syntax=docker/dockerfile:1
-FROM python:3.13-slim
+FROM python:3.13
 
 ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
     PIP_DISABLE_PIP_VERSION_CHECK=1
 
-# Install minimal OS dependencies (include zlib for arm/v7 builds)
-RUN apt-get update \
-    && apt-get install -y --no-install-recommends \
-       zlib1g ca-certificates \
-    && rm -rf /var/lib/apt/lists/*
-
 WORKDIR /app
 
 # Copy dependency list and install first (leverages Docker layer cache)