feat: Create PM2 + Docker production deployment system

- Replaced old production script with PM2-based deployment
- Created start-production.sh: automated startup script
  - Starts Docker containers for databases
  - Waits for database health checks
  - Runs migrations automatically
  - Builds backend/frontend if needed
  - Starts PM2 processes with ecosystem.config.js
  - Verifies all services are running

- Created stop-production.sh: graceful shutdown script
  - Stops PM2 processes
  - Stops Docker containers
  - Verifies shutdown

- Created PRODUCTION_DEPLOYMENT.md: comprehensive deployment guide
  - Prerequisites and installation steps
  - Configuration instructions
  - Nginx reverse proxy setup
  - SSL certificate setup with Certbot
  - Management commands for PM2 and Docker
  - Backup strategy
  - Troubleshooting guide
  - Security checklist

Production setup:
- Backend:  Port 3020 → api.parentflowapp.com
- Frontend: Port 3030 → web.parentflowapp.com
- Docker:   PostgreSQL, Redis, MongoDB, MinIO
- PM2:      Backend and Frontend applications
- Target:   Server 10.0.0.240

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

stop-production.sh

@@ -0,0 +1,77 @@
+#!/bin/bash
+
+# ParentFlow Production Stop Script
+# Stops PM2 processes and Docker containers gracefully
+
+set -e
+
+# Color codes
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+echo "=========================================="
+echo "Stopping ParentFlow Production"
+echo "=========================================="
+echo ""
+
+# Step 1: Stop PM2 processes
+echo -e "${BLUE}Step 1: Stopping PM2 processes...${NC}"
+if command -v pm2 &> /dev/null; then
+    pm2 stop all 2>/dev/null || true
+    echo -e "${GREEN}✓ PM2 processes stopped${NC}"
+else
+    echo -e "${YELLOW}Warning: PM2 not found${NC}"
+fi
+
+# Step 2: Stop Docker containers
+echo ""
+echo -e "${BLUE}Step 2: Stopping Docker containers...${NC}"
+if docker compose version &> /dev/null; then
+    docker compose -f docker-compose.production.yml down
+else
+    docker-compose -f docker-compose.production.yml down 2>/dev/null || true
+fi
+
+if [ $? -eq 0 ]; then
+    echo -e "${GREEN}✓ Docker containers stopped${NC}"
+else
+    echo -e "${YELLOW}Warning: Failed to stop some Docker containers${NC}"
+fi
+
+# Verify everything is stopped
+echo ""
+echo -e "${BLUE}Verification:${NC}"
+
+# Check PM2
+if command -v pm2 &> /dev/null; then
+    RUNNING_PROCESSES=$(pm2 jlist 2>/dev/null | jq -r '.[] | select(.pm2_env.status == "online") | .name' | wc -l)
+    if [ "$RUNNING_PROCESSES" -eq 0 ]; then
+        echo -e "${GREEN}✓ No PM2 processes running${NC}"
+    else
+        echo -e "${YELLOW}Warning: $RUNNING_PROCESSES PM2 processes still running${NC}"
+    fi
+fi
+
+# Check Docker
+RUNNING_CONTAINERS=$(docker ps --filter name=parentflow --format "{{.Names}}" | wc -l)
+if [ "$RUNNING_CONTAINERS" -eq 0 ]; then
+    echo -e "${GREEN}✓ No ParentFlow Docker containers running${NC}"
+else
+    echo -e "${YELLOW}Warning: $RUNNING_CONTAINERS containers still running${NC}"
+    docker ps --filter name=parentflow
+fi
+
+echo ""
+echo "=========================================="
+echo -e "${GREEN}Production environment stopped${NC}"
+echo "=========================================="
+echo ""
+echo "To completely remove Docker volumes (WARNING: deletes data):"
+echo "  docker-compose -f docker-compose.production.yml down -v"
+echo ""
+echo "To remove PM2 processes from startup:"
+echo "  pm2 delete all"
+echo "  pm2 save"