Initial commit: Complete Software Architecture course with 11 modules

- Added comprehensive course structure with 11 modules
- Included theoretical content, practical examples, and tasks
- Multi-language code examples (Java, Rust, Node.js, Python)
- Detailed analysis of architectural approaches and trade-offs
- Complete caching strategies documentation
- Architecture examples from real-world systems (Twitter, Netflix, Uber)
- Structured navigation and learning path
- Ready for educational use

modules/module11/sections/05-presentation.md

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+# Презентация проекта
+
+## Навигация
+- [🏠 Главная страница курса](../../../README.md)
+- [📚 Модуль 11](../README.md)
+
+---
+
+## Структура презентации
+
+### 1. Executive Summary
+```markdown
+# E-commerce Platform Architecture
+## Executive Summary
+
+### Постановка проблемы
+- Current monolithic architecture limits scalability
+- High deployment risk and slow time-to-market
+- Difficult to maintain and extend
+
+### Предлагаемое решение
+- Microservices architecture with cloud-native design
+- Independent deployment and scaling
+- Improved developer productivity
+
+### Бизнес-ценность
+- 50% faster time-to-market
+- 99.9% availability
+- 10x better scalability
+- Reduced operational costs
+
+### План реализации
+- Phase 1: Core services (3 months)
+- Phase 2: Advanced features (2 months)
+- Phase 3: Optimization (1 month)
+```
+
+### 2. Technical Deep Dive
+```markdown
+# Technical Architecture
+
+## Architecture Principles
+- Domain-Driven Design
+- Microservices
+- Event-Driven Architecture
+- Cloud-Native
+
+## Technology Stack
+- Backend: Java 17, Spring Boot 3.x
+- Frontend: React 18, TypeScript
+- Database: PostgreSQL, Redis
+- Infrastructure: Kubernetes, AWS
+
+## Key Features
+- High availability (99.9%)
+- Horizontal scaling
+- Real-time processing
+- Comprehensive monitoring
+
+## Security
+- JWT authentication
+- Role-based authorization
+- Data encryption
+- PCI DSS compliance
+```
+
+## Сценарии демонстрации
+
+### 1. User Journey Demo
+```markdown
+# Demo Scenario: Complete User Journey
+
+## Scenario 1: Customer Places Order
+1. Customer browses products
+2. Adds items to cart
+3. Proceeds to checkout
+4. Enters payment information
+5. Confirms order
+6. Receives confirmation email
+
+## Scenario 2: Order Processing
+1. Order service creates order
+2. Inventory service reserves items
+3. Payment service processes payment
+4. Order status updated
+5. Customer notified
+
+## Scenario 3: Admin Management
+1. Admin views order dashboard
+2. Updates order status
+3. Monitors system metrics
+4. Handles customer inquiries
+```
+
+### 2. Technical Demo
+```markdown
+# Technical Demo
+
+## Microservices Communication
+- Show service-to-service communication
+- Demonstrate event-driven architecture
+- Display real-time monitoring
+
+## Scalability Demo
+- Load test with increasing traffic
+- Show auto-scaling in action
+- Demonstrate failover scenarios
+
+## Monitoring Demo
+- Real-time metrics dashboard
+- Alert notifications
+- Performance analysis
+```