Enable easy deployment using Portainer and resolve image pull errors

Adds Portainer deployment configuration, scripts, and documentation, and fixes local image building.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: dec54137-d5a2-4406-8ad4-5f2f9fb110bf
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/0715008c-7244-40f4-befc-26c014852236/c7544f27-893f-4348-971a-1d048c9a4d80.jpg

replit.md

@@ -286,6 +286,15 @@ Preferred communication style: Simple, everyday language.
 - ✅ Database tables now created automatically on first container startup
 - ✅ Complete Docker deployment package ready with all fixes applied
 
+### Portainer Deployment Fix (January 10, 2025)
+- ✅ Resolved Docker image pull error "regisflow-regisflow:latest" in Portainer
+- ✅ Created local image building solution with "regisflow:latest" tag
+- ✅ Generated Portainer-specific stack configuration (portainer-stack.yml)
+- ✅ Built automated deployment script (deploy-portainer.sh) for server setup
+- ✅ Created comprehensive Portainer deployment guide (PORTAINER_GUIDE.md)
+- ✅ Fixed image reference in docker-compose.yml to use local image
+- ✅ Configured proper networking and volume management for Portainer stacks
+
 ### Production Deployment System (January 9, 2025)
 - ✅ Multi-stage Dockerfile optimized for production with security hardening
 - ✅ Production-specific Docker Compose configuration with resource limits