ci: enhance pipeline with version persistence and direct deployment

- Add version extraction from IG and tag validation for releases
- Update package-list.json and package-feed.xml automatically on releases
- Replace Docker-based deployment with direct file upload via SCP/SSH
- Add publication request configuration for FHIR registry
- Remove obsolete Dockerfile.serve as deployment strategy changed

Dockerfile.serve

@@ -1,42 +0,0 @@
-# Multi-stage build for serving FHIR IG output
-FROM nginx:alpine
-
-# Copy the built IG output to nginx html directory
-# (Uncomment and adjust the path if needed)
-COPY output/ /usr/share/nginx/html/
-
-# Copy custom nginx configuration
-COPY nginx.conf /etc/nginx/nginx.conf
-
-# Create a non-root user for security
-RUN addgroup -g 1001 -S nginx-user && \
-    adduser -S -D -H -u 1001 -h /var/cache/nginx -s /sbin/nologin -G nginx-user -g nginx-user nginx-user
-
-# Set proper permissions for Nginx directories
-RUN chown -R nginx-user:nginx-user /usr/share/nginx/html && \
-    chown -R nginx-user:nginx-user /var/cache/nginx && \
-    chown -R nginx-user:nginx-user /var/log/nginx && \
-    chown -R nginx-user:nginx-user /etc/nginx/conf.d
-
-# Fix Nginx PID permission issue
-RUN mkdir -p /var/cache/nginx/run && \
-    chown -R nginx-user:nginx-user /var/cache/nginx/run
-
-# Update nginx.conf to point PID to writable location
-# Ensure your nginx.conf has:
-# pid /var/cache/nginx/run/nginx.pid;
-
-# Switch to non-root user
-USER nginx-user
-
-# Health check
-# HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
-#   CMD curl -f http://localhost/ || exit 1
-
-EXPOSE 80
-
-# Start Nginx in foreground
-# CMD ["nginx", "-g", "daemon off;"]
-
-CMD ["nginx", "-g", "daemon off;", "-c", "/etc/nginx/nginx.conf"]
-