Remove pylibjpeg-libjpeg dependency (#14)

Only JPEG 2000 (pylibjpeg-openjpeg) is used for compression.

Meanwhile, pylibjpeg-libjpeg lacks Python 3.14 Linux wheels.

Use python:3.14-slim for glibc wheel compatibility

Alpine uses musl libc which lacks pre-built wheels for many packages.

Author: carlosmartinez

Dockerfile

@@ -1,8 +1,10 @@
 # Dockerfile for NHS Manage Breast Screening Gateway - PACS Server
-FROM python:3.14-alpine
+FROM python:3.14-slim
 
 # Install system dependencies
-RUN apk add sqlite
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    sqlite3 \
+    && rm -rf /var/lib/apt/lists/*
 
 # Install uv for package management
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv

pyproject.toml

@@ -10,8 +10,7 @@ dependencies = [
   "pynetdicom>=3.0.4",
   "numpy>=2.4.0,<3",
   "pylibjpeg>=2.0.0",
-  "pylibjpeg-libjpeg>=2.0.0",
-  "pylibjpeg-openjpeg>=2.2.0",
+  "pylibjpeg-openjpeg>=2.5.0",
   "pillow>=11.0.0",
   "websockets==15.0.1",
   "requests>=2.32.0",