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/requirements.txt

@@ -0,0 +1,46 @@
+# Core Flask
+Flask==3.1.0
+Werkzeug==3.1.3
+Jinja2==3.1.5
+itsdangerous==2.2.0
+click==8.1.8
+blinker==1.9.0
+
+# Flask Extensions
+Flask-SQLAlchemy==3.1.1
+Flask-Migrate==4.1.0
+Flask-Bcrypt==1.0.1
+Flask-Login==0.6.3
+
+# Database
+SQLAlchemy==2.0.37
+alembic==1.14.1
+Mako==1.3.8
+greenlet==3.1.1
+
+# File Processing
+pdf2image==1.17.0
+PyPDF2==3.0.1
+Pillow==10.0.1
+cairosvg==2.7.0
+ffmpeg-python==0.2.0
+python-magic==0.4.27
+
+# Security
+bcrypt==4.2.1
+Flask-Talisman==1.1.0
+Flask-Cors==4.0.0
+
+# Production Server
+gunicorn==20.1.0
+gevent==23.9.1
+
+# Monitoring & Performance
+prometheus-flask-exporter==0.22.4
+sentry-sdk[flask]==1.40.0
+psutil==6.1.0
+
+# Utilities
+typing_extensions==4.12.2
+MarkupSafe==3.0.2
+python-dotenv==1.0.1