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System Architecture

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High-Level Architecture

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Component Details

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Frontend Layer

• Next.js Application: Modern React-based web interface
• Real-time Updates: SignalR integration for live status updates
• Multi-tenant UI: Organization-specific dashboards and data
• Responsive Design: Works on desktop, tablet, and mobile devices

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Backend Services

• ASP.NET Core API: RESTful services with OpenAPI documentation
• Entity Framework Core: Database abstraction with multi-tenant filtering
• SignalR Hub: Real-time communication with agents
• Background Workers: Scheduled tasks and maintenance operations

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Data Layer

• SQL Server Database: Primary data storage with ACID compliance
• S3-Compatible Storage: Package and asset storage
• Redis Cache: Session management and performance optimization
• Audit Logging: Comprehensive activity tracking

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Agent Architecture

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Windows Service

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Communication Flow

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Security Architecture

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Authentication & Authorization

• JWT Tokens: Stateless authentication with refresh tokens
• Role-Based Access Control: Granular permissions per organization
• Machine Key Authentication: Unique keys for agent registration
• API Key Management: Secure programmatic access

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Data Protection

• Encryption at Rest: Database and storage encryption
• Encryption in Transit: TLS 1.3 for all communications
• Credential Vault: Secure asset storage with encryption
• Audit Trail: Complete activity logging for compliance

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Network Security

• HTTPS Only: All web traffic encrypted
• WebSocket Security: Secure real-time connections
• IP Whitelisting: Optional network access controls
• Rate Limiting: API protection against abuse

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Scalability Design

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Horizontal Scaling

• Stateless Services: API servers can be load balanced
• Database Sharding: Support for multiple database instances
• CDN Integration: Global content delivery for packages
• Auto-scaling: Cloud infrastructure scales with demand

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Agent Scalability

• Unlimited Agents: No licensing restrictions on agent count
• Load Distribution: Intelligent package distribution
• Resource Management: Configurable execution limits
• Failover Support: Automatic agent health monitoring

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Performance Optimizations

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Caching Strategy

• Redis Caching: Frequently accessed data
• CDN Caching: Static assets and packages
• Database Indexing: Optimized query performance
• Connection Pooling: Efficient database connections

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Monitoring & Observability

• Application Metrics: Performance and usage tracking
• Health Checks: Automated system monitoring
• Log Aggregation: Centralized logging with search
• Alerting: Proactive issue notification

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Technology Stack

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Backend

• Runtime: .NET 8.0
• Framework: ASP.NET Core
• Database: Entity Framework Core
• Real-time: SignalR
• Authentication: JWT Bearer tokens

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Frontend

• Framework: Next.js 15
• Language: TypeScript
• Runtime: React 19
• Styling: Tailwind CSS
• State Management: React Query
• Real-time: SignalR Client

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Agent

• Service: .NET 8.0 Windows Service
• UI: WPF Application
• Runtime: Python 3.11+
• Communication: SignalR Client
• Storage: Local file system

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Infrastructure

• Database: SQL Server 2019+
• Storage: S3-compatible object storage
• Cache: Redis 7+
• Hosting: Docker containers
• Orchestration: Kubernetes (optional)