switch to debian in docker

Dockerfile

@@ -1,25 +1,27 @@
-FROM python:3.14-alpine
+FROM python:3.14-slim
 
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 
 WORKDIR /app
 
-RUN apk add --no-cache \
-    gcc musl-dev python3-dev \
-    \
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    gcc \
+    build-essential \
+    python3-dev \
     libffi-dev \
-    jpeg-dev \
-    zlib-dev \
-    \
-    cairo-dev \
-    pango-dev \
-    gdk-pixbuf-dev \
-    glib-dev \
-    freetype-dev \
-    fontconfig-dev \
-    \
-    pkgconfig
+    libjpeg62-turbo-dev \
+    zlib1g-dev \
+    libcairo2-dev \
+    libpango1.0-dev \
+    libgdk-pixbuf-2.0-dev \
+    libglib2.0-dev \
+    libfreetype6-dev \
+    libfontconfig1-dev \
+    pkg-config \
+    libpq-dev \
+    default-libmysqlclient-dev \
+    && rm -rf /var/lib/apt/lists/*
 
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
@@ -27,4 +29,4 @@ RUN pip install --no-cache-dir -r requirements.txt
 COPY . .
 RUN mkdir -p db storage/archive storage/pdf storage/backups
 
-CMD ["gunicorn", "-w", "1", "-k", "gthread", "--threads", "8", "-b", "0.0.0.0:5000", "run:app"]
+CMD ["gunicorn", "-w", "1", "-k", "gthread", "--threads", "8", "-b", "0.0.0.0:5000", "run:app"]