feat: v1.1.0 - Production-Ready Docker Deployment

🚀 Major Release: DigiServer v1.1.0 Production Deployment

## 📁 Project Restructure
- Moved all application code to app/ directory for Docker containerization
- Centralized persistent data in data/ directory with volume mounting
- Removed development artifacts and cleaned up project structure

## 🐳 Docker Integration
- Added production-ready Dockerfile with LibreOffice and poppler-utils
- Updated docker-compose.yml for production deployment
- Added .dockerignore for optimized build context
- Created automated deployment script (deploy-docker.sh)
- Added cleanup script (cleanup-docker.sh)

## 📄 Document Processing Enhancements
- Integrated LibreOffice for professional PPTX to PDF conversion
- Implemented PPTX → PDF → 4K JPG workflow for optimal quality
- Added poppler-utils for enhanced PDF processing
- Simplified PDF conversion to 300 DPI for reliability

## 🔧 File Management Improvements
- Fixed absolute path resolution for containerized deployment
- Updated all file deletion functions with proper path handling
- Enhanced bulk delete functions for players and groups
- Improved file upload workflow with consistent path management

## 🛠️ Code Quality & Stability
- Cleaned up pptx_converter.py from 442 to 86 lines
- Removed all Python cache files (__pycache__/, *.pyc)
- Updated file operations for production reliability
- Enhanced error handling and logging

## 📚 Documentation Updates
- Updated README.md with Docker deployment instructions
- Added comprehensive DEPLOYMENT.md guide
- Included production deployment best practices
- Added automated deployment workflow documentation

## 🔐 Security & Production Features
- Environment-based configuration
- Health checks and container monitoring
- Automated admin user creation
- Volume-mounted persistent data
- Production logging and error handling

## ✅ Ready for Production
- Clean project structure optimized for Docker
- Automated deployment with ./deploy-docker.sh
- Professional document processing pipeline
- Reliable file management system
- Complete documentation and deployment guides

Access: http://localhost:8880 | Admin: admin/Initial01!

app/models/create_default_user.py

@@ -0,0 +1,18 @@
+#from app import app, db, User, bcrypt
+import os
+
+def create_default_user(db, User, bcrypt):
+    username = os.getenv('DEFAULT_USER', 'admin')
+    password = os.getenv('DEFAULT_PASSWORD', '1234')
+    hashed_password = bcrypt.generate_password_hash(password).decode('utf-8')
+    existing_user = User.query.filter_by(username=username).first()
+    if not existing_user:
+        default_user = User(username=username, password=hashed_password, role='admin')
+        db.session.add(default_user)
+        db.session.commit()
+        print(f"Default user '{username}' created with password '{password}'")
+    else:
+        print(f"Default user '{username}' already exists.")
+
+#with app.app_context():
+#    create_default_user(db, User, bcrypt)