feat: Major system improvements and production deployment

✨ New Features:
- Added view_orders route with proper table display
- Implemented CSV upload with preview workflow and date parsing
- Added production WSGI server configuration with Gunicorn
- Created comprehensive production management scripts

🔧 Bug Fixes:
- Fixed upload_data route column mapping for actual CSV structure
- Resolved print module database queries and template rendering
- Fixed view orders navigation routing (was pointing to JSON API)
- Corrected barcode display width constraints in print module
- Added proper date format parsing for MySQL compatibility

🎨 UI/UX Improvements:
- Updated view_orders template with theme-compliant styling
- Hidden barcode text in print module preview for cleaner display
- Enhanced CSV upload with two-step preview-then-save workflow
- Improved error handling and debugging throughout upload process

🚀 Production Infrastructure:
- Added Gunicorn WSGI server with proper configuration
- Created systemd service for production deployment
- Implemented production management scripts (start/stop/status)
- Added comprehensive logging setup
- Updated requirements.txt with production dependencies

📊 Database & Data:
- Enhanced order_for_labels table compatibility
- Fixed column mappings for real CSV data structure
- Added proper date parsing and validation
- Improved error handling with detailed debugging

🔧 Technical Debt:
- Reorganized database setup documentation
- Added proper error handling throughout upload workflow
- Enhanced debugging capabilities for troubleshooting
- Improved code organization and documentation

py_app/status_production.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+
+# Production Status Script for Trasabilitate Application
+# This script shows the current status of the Gunicorn WSGI server
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+print_success() {
+    echo -e "${GREEN}✅ $1${NC}"
+}
+
+print_warning() {
+    echo -e "${YELLOW}⚠️  $1${NC}"
+}
+
+print_error() {
+    echo -e "${RED}❌ $1${NC}"
+}
+
+echo -e "${BLUE}📊 Trasabilitate Application - Status Check${NC}"
+echo "=============================================="
+
+PID_FILE="../run/trasabilitate.pid"
+
+if [[ ! -f "$PID_FILE" ]]; then
+    print_error "Application is not running (no PID file found)"
+    echo "To start the application, run: ./start_production.sh"
+    exit 1
+fi
+
+PID=$(cat "$PID_FILE")
+
+if ps -p "$PID" > /dev/null 2>&1; then
+    print_success "Application is running (PID: $PID)"
+    echo ""
+    echo "📋 Process Information:"
+    ps -p "$PID" -o pid,ppid,pcpu,pmem,etime,cmd --no-headers | while read line; do
+        echo "   $line"
+    done
+    echo ""
+    echo "🌐 Server Information:"
+    echo "   • Listening on: 0.0.0.0:8781"
+    echo "   • Local URL:    http://127.0.0.1:8781"
+    echo "   • Network URL:  http://$(hostname -I | awk '{print $1}'):8781"
+    echo ""
+    echo "📁 Log Files:"
+    echo "   • Access Log: /srv/quality_recticel/logs/access.log"
+    echo "   • Error Log:  /srv/quality_recticel/logs/error.log"
+    echo ""
+    echo "🔧 Quick Commands:"
+    echo "   • Stop server:     ./stop_production.sh"
+    echo "   • Restart server:  ./stop_production.sh && ./start_production.sh"
+    echo "   • View error log:  tail -f /srv/quality_recticel/logs/error.log"
+    echo "   • View access log: tail -f /srv/quality_recticel/logs/access.log"
+    echo ""
+    
+    # Check if the web server is responding
+    if command -v curl > /dev/null 2>&1; then
+        echo "🌐 Connection Test:"
+        if curl -s -o /dev/null -w "%{http_code}" http://127.0.0.1:8781 | grep -q "200\|302\|401"; then
+            print_success "Web server is responding"
+        else
+            print_warning "Web server may not be responding properly"
+        fi
+    fi
+    
+else
+    print_error "Process $PID not found (stale PID file)"
+    print_warning "Cleaning up stale PID file..."
+    rm -f "$PID_FILE"
+    echo "To start the application, run: ./start_production.sh"
+    exit 1
+fi