update with latest build versions, includes custom build for postgres and migrating from v16 to v18

build/piefed/piefed-web/Dockerfile

@@ -1,6 +1,7 @@
 FROM piefed-base AS piefed-web
 
-# No additional Alpine packages needed - uWSGI installed via pip in base image
+# Install nginx (only needed for web container)
+RUN apk add --no-cache nginx
 
 # Web-specific Python configuration for Flask
 RUN echo 'import os' > /app/uwsgi_config.py && \
@@ -13,14 +14,10 @@ COPY supervisord-web.conf /etc/supervisor/conf.d/supervisord.conf
 COPY entrypoint-web.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh
 
-# Create nginx directories and set permissions
-RUN mkdir -p /var/log/nginx /var/log/supervisor /var/log/uwsgi \
-    && chown -R nginx:nginx /var/log/nginx \
-    && chown -R piefed:piefed /var/log/uwsgi \
-    && mkdir -p /var/cache/nginx \
-    && chown -R nginx:nginx /var/cache/nginx \
-    && chown -R piefed:piefed /app/logs \
-    && chmod -R 755 /app/logs
+# Create nginx and log directories with proper permissions in a single layer
+RUN mkdir -p /var/log/nginx /var/log/supervisor /var/log/uwsgi /var/cache/nginx \
+    && chown -R nginx:nginx /var/log/nginx /var/cache/nginx \
+    && chown -R piefed:piefed /var/log/uwsgi /app/logs
 
 # Health check optimized for web container
 HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \