Fix Docker build: Install openssl and run as root to fix volume permissions

Dockerfile

@@ -19,6 +19,7 @@ ENV NODE_ENV=production
 ENV PORT=3726
 ENV DATABASE_URL="file:/app/data/study.db"
 
+RUN apt-get update -y && apt-get install -y openssl && rm -rf /var/lib/apt/lists/*
 RUN useradd --system --create-home appuser && mkdir -p /app/data && chown -R appuser:appuser /app
 
 COPY --from=builder /app/.next/standalone ./
@@ -28,8 +29,8 @@ COPY --from=builder /app/prisma ./prisma
 COPY --from=builder /app/prisma.config.ts ./
 RUN npm install prisma@^7.8.0
 COPY docker-entrypoint.sh ./
-RUN chmod +x docker-entrypoint.sh && chown -R appuser:appuser /app
-USER appuser
+RUN chmod +x docker-entrypoint.sh
+# Running as root to avoid permission denied on Unraid host-mounted volumes
 EXPOSE 3726
 VOLUME ["/app/data"]
 ENTRYPOINT ["./docker-entrypoint.sh"]