feat: add Windows hardware inventory collector and NetBox sync

feat: add self-contained Windows build and Intune deployment scripts
docs: document configuration, permissions, and deployment
ci: build x64 and arm64 agent artifacts

scripts/install.ps1

@@ -0,0 +1,21 @@
+param(
+    [string]$SourceDirectory = $PSScriptRoot,
+    [string]$InstallDirectory = "$env:ProgramFiles\NetBox Windows Agent",
+    [string]$Schedule = 'DAILY',
+    [string]$StartTime = '09:00'
+)
+$ErrorActionPreference = 'Stop'
+if (-not (Test-Path (Join-Path $SourceDirectory 'agent.exe'))) { throw 'agent.exe fehlt im Quellverzeichnis.' }
+if (-not (Test-Path (Join-Path $SourceDirectory 'config.json'))) { throw 'config.json fehlt im Quellverzeichnis.' }
+New-Item -ItemType Directory -Path $InstallDirectory -Force | Out-Null
+Copy-Item (Join-Path $SourceDirectory 'agent.exe') (Join-Path $InstallDirectory 'agent.exe') -Force
+Copy-Item (Join-Path $SourceDirectory 'config.json') (Join-Path $InstallDirectory 'config.json') -Force
+$acl = Get-Acl $InstallDirectory
+$acl.SetAccessRuleProtection($true, $false)
+$admins = New-Object System.Security.AccessControl.FileSystemAccessRule('BUILTIN\Administrators', 'FullControl', 'ContainerInherit,ObjectInherit', 'None', 'Allow')
+$system = New-Object System.Security.AccessControl.FileSystemAccessRule('NT AUTHORITY\SYSTEM', 'FullControl', 'ContainerInherit,ObjectInherit', 'None', 'Allow')
+$acl.SetAccessRule($admins); $acl.SetAccessRule($system); Set-Acl $InstallDirectory $acl
+$command = '"' + (Join-Path $InstallDirectory 'agent.exe') + '" --config "' + (Join-Path $InstallDirectory 'config.json') + '"'
+schtasks.exe /Create /TN 'NetBox Windows Agent' /SC $Schedule /ST $StartTime /RU SYSTEM /RL HIGHEST /TR $command /F | Out-Null
+& (Join-Path $InstallDirectory 'agent.exe') --config (Join-Path $InstallDirectory 'config.json')
+