feat: add Organization/Sub-Organization CRUD cmdlets and Get-InfisicalSANList

Adds 8 cmdlets for Organization and Sub-Organization CRUD (Get/New/Update/Remove for each), targeting /api/v2/organizations and /api/v1/sub-organizations. Get cmdlets default to List parameter set and switch to Single when -OrganizationId or -SubOrganizationId is supplied. New/Update/Remove honor -WhatIf/-Confirm; Remove defaults to High ConfirmImpact and supports -PassThru. No project context required.

Adds Get-InfisicalSANList: emits a deduplicated SAN candidate set containing the local device name, the device name suffixed with each non-empty DNS suffix found across operational adapters and the system primary domain, every IPv4 unicast address falling within RFC 1918 or CGNAT, and the IPv4/IPv6 loopback addresses. Supports optional case-insensitive -InclusionExpression and -ExclusionExpression regex filters applied in fetch -> include -> exclude -> output order. Output is a single strongly-typed System.String[] array emitted non-enumerated so List<string>.AddRange consumes it directly.

Registers 10 new endpoints, adds InfisicalOrganization/InfisicalSubOrganization models with DTOs, mappers, and clients, full MAML help for all 9 new cmdlets, mapper unit tests, EndpointRegistry inline-data coverage, and docs/DesignSpec.md sections 16.7 and 16.8. build.ps1 CmdletsToExport and Test-ModuleImports expected list now contain 51 cmdlets. README updated with Organization/Sub-Organization tables, the new Get-InfisicalSANList entry, and an end-to-end certificate request example using splatted OrderedDictionary blocks.

build.ps1

@@ -129,6 +129,14 @@ function Write-Manifest {
         'New-InfisicalTag',
         'Update-InfisicalTag',
         'Remove-InfisicalTag',
+        'Get-InfisicalOrganization',
+        'New-InfisicalOrganization',
+        'Update-InfisicalOrganization',
+        'Remove-InfisicalOrganization',
+        'Get-InfisicalSubOrganization',
+        'New-InfisicalSubOrganization',
+        'Update-InfisicalSubOrganization',
+        'Remove-InfisicalSubOrganization',
         'Get-InfisicalCertificateAuthority',
         'Get-InfisicalPkiSubscriber',
         'Get-InfisicalCertificateProfile',
@@ -145,7 +153,8 @@ function Write-Manifest {
         'Get-InfisicalScepMdmProfile',
         'Export-InfisicalScepMdmProfile',
         'Write-InfisicalScepMdmProfileToWmi',
-        'Start-InfisicalProcess'
+        'Start-InfisicalProcess',
+        'Get-InfisicalSANList'
     )
     AliasesToExport      = @()
     VariablesToExport    = @()
@@ -210,7 +219,7 @@ if (`$cmds.Count -eq 0) {
     throw "No cmdlets were exported by the PSInfisicalAPI module."
 }
 
-`$expectedCmds = @('Connect-Infisical','Disconnect-Infisical','Get-InfisicalSecret','New-InfisicalSecret','Update-InfisicalSecret','Remove-InfisicalSecret','Copy-InfisicalSecret','ConvertTo-InfisicalSecretDictionary','Export-InfisicalSecrets','Get-InfisicalProject','New-InfisicalProject','Update-InfisicalProject','Remove-InfisicalProject','Get-InfisicalEnvironment','New-InfisicalEnvironment','Update-InfisicalEnvironment','Remove-InfisicalEnvironment','Get-InfisicalFolder','New-InfisicalFolder','Update-InfisicalFolder','Remove-InfisicalFolder','Get-InfisicalTag','New-InfisicalTag','Update-InfisicalTag','Remove-InfisicalTag','Get-InfisicalCertificateAuthority','Get-InfisicalPkiSubscriber','Get-InfisicalCertificateProfile','Get-InfisicalCertificatePolicy','Get-InfisicalCertificate','Request-InfisicalCertificate','ConvertTo-InfisicalCertificate','Install-InfisicalCertificate','Uninstall-InfisicalCertificate','Export-InfisicalCertificate','Get-InfisicalCertificateApplication','Get-InfisicalCertificateApplicationEnrollment','New-InfisicalScepDynamicChallenge','Get-InfisicalScepMdmProfile','Export-InfisicalScepMdmProfile','Write-InfisicalScepMdmProfileToWmi','Start-InfisicalProcess')
+`$expectedCmds = @('Connect-Infisical','Disconnect-Infisical','Get-InfisicalSecret','New-InfisicalSecret','Update-InfisicalSecret','Remove-InfisicalSecret','Copy-InfisicalSecret','ConvertTo-InfisicalSecretDictionary','Export-InfisicalSecrets','Get-InfisicalProject','New-InfisicalProject','Update-InfisicalProject','Remove-InfisicalProject','Get-InfisicalEnvironment','New-InfisicalEnvironment','Update-InfisicalEnvironment','Remove-InfisicalEnvironment','Get-InfisicalFolder','New-InfisicalFolder','Update-InfisicalFolder','Remove-InfisicalFolder','Get-InfisicalTag','New-InfisicalTag','Update-InfisicalTag','Remove-InfisicalTag','Get-InfisicalOrganization','New-InfisicalOrganization','Update-InfisicalOrganization','Remove-InfisicalOrganization','Get-InfisicalSubOrganization','New-InfisicalSubOrganization','Update-InfisicalSubOrganization','Remove-InfisicalSubOrganization','Get-InfisicalCertificateAuthority','Get-InfisicalPkiSubscriber','Get-InfisicalCertificateProfile','Get-InfisicalCertificatePolicy','Get-InfisicalCertificate','Request-InfisicalCertificate','ConvertTo-InfisicalCertificate','Install-InfisicalCertificate','Uninstall-InfisicalCertificate','Export-InfisicalCertificate','Get-InfisicalCertificateApplication','Get-InfisicalCertificateApplicationEnrollment','New-InfisicalScepDynamicChallenge','Get-InfisicalScepMdmProfile','Export-InfisicalScepMdmProfile','Write-InfisicalScepMdmProfileToWmi','Start-InfisicalProcess','Get-InfisicalSANList')
 foreach (`$expected in `$expectedCmds) {
     if (-not (Get-Command -Name `$expected -Module PSInfisicalAPI -ErrorAction SilentlyContinue)) {
         throw "Cmdlet not found: `$expected"