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.github/copilot-instructions.md

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+<!-- Use this file to provide workspace-specific custom instructions to Copilot. For more details, visit https://code.visualstudio.com/docs/copilot/copilot-customization#_use-a-githubcopilotinstructionsmd-file -->
+
+# Signal9 RMM Agent System - Development Guidelines
+
+This is a .NET 9 based Remote Monitoring and Management (RMM) system with the following architecture:
+
+## Project Structure
+- **Signal9.Agent** - Console application (RMM agent)
+- **Signal9.Hub** - ASP.NET Core SignalR hub service
+- **Signal9.WebPortal** - ASP.NET Core MVC web application
+- **Signal9.Functions** - Azure Functions project
+- **Signal9.Shared** - Shared library with models, DTOs, and interfaces
+
+## Key Technologies
+- .NET 9
+- SignalR for real-time communication
+- Azure services (Container Apps, SQL Database, Cosmos DB, Service Bus, Key Vault)
+- Entity Framework Core for SQL data access
+- Managed Identity for authentication
+- Bicep for Infrastructure as Code
+
+## Development Guidelines
+
+### Code Style
+- Use C# 12 features and modern patterns
+- Follow async/await patterns consistently
+- Use dependency injection throughout
+- Implement proper logging with structured logging
+- Use configuration patterns with IOptions<T>
+
+### Azure Integration
+- Always use Managed Identity over connection strings
+- Store secrets in Azure Key Vault
+- Use Azure SDK packages for service integration
+- Follow Azure Well-Architected Framework principles
+
+### SignalR Implementation
+- Use strongly-typed hubs with interfaces
+- Implement proper connection lifecycle management
+- Handle reconnection scenarios with exponential backoff
+- Use groups for organizing connections (agents, admins)
+
+### Data Access
+- Use Entity Framework Core for SQL Database
+- Use Azure Cosmos DB SDK for NoSQL data
+- Implement repository patterns where appropriate
+- Use proper error handling and retry policies
+
+### Agent Development
+- Implement robust telemetry collection
+- Handle command execution with proper error handling
+- Use background services for long-running operations
+- Implement graceful shutdown and restart capabilities
+
+### Testing
+- Write unit tests for business logic
+- Use integration tests for SignalR hubs
+- Mock Azure services for testing
+- Test agent connectivity scenarios
+
+### Security
+- Never hardcode credentials
+- Use HTTPS for all communications
+- Implement proper input validation
+- Follow least privilege principles for permissions
+
+### Deployment
+- Use Azure Developer CLI (azd) for deployment
+- Container apps should use minimal base images
+- Configure health checks for all services
+- Use staging slots for safe deployments

.gitignore

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+# Created by https://www.toptal.com/developers/gitignore/api/aspnetcore,dotnetcore,azurefunctions,azurite
+# Edit at https://www.toptal.com/developers/gitignore?templates=aspnetcore,dotnetcore,azurefunctions,azurite
+
+### ASPNETCore ###
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# DNX
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# TODO: Comment the next line if you want to checkin your web deploy settings
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+# NuGet v3's project.json files produces more ignoreable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+node_modules/
+orleans.codegen.cs
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+*.mdf
+*.ldf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+# CodeRush
+.cr/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/
+
+### AzureFunctions ###
+# Azure Functions localsettings file
+local.settings.json
+
+### Azurite ###
+# Azurite queue
+__queuestorage__
+__azurite_db_queue__.json
+__azurite_db_queue_extent__.json
+
+# Azurite blob
+__blobstorage__
+__azurite_db_blob__.json
+__azurite_db_blob_extent__.json
+
+# Azurite table
+__azurite_db_table__.json
+__azurite_db_table_extent__.json
+
+### DotnetCore ###
+# .NET Core build folders
+bin/
+obj/
+
+# Common node modules locations
+/node_modules
+/wwwroot/node_modules
+
+# End of https://www.toptal.com/developers/gitignore/api/aspnetcore,dotnetcore,azurefunctions,azurite