Add headless macOS CLI workflow

Headless/IntuneManagement.Headless.psd1

@@ -0,0 +1,17 @@
+@{
+    RootModule = 'IntuneManagement.Headless.psm1'
+    ModuleVersion = '0.1.0'
+    GUID = 'b5b4183d-8d6b-4b31-bbde-f2f0f0a0739d'
+    Author = 'OpenAI Codex'
+    Copyright = '(c) OpenAI. Adapter module for headless Intune policy migration.'
+    Description = 'Headless export/import wrapper for IntuneManagement.'
+    FunctionsToExport = @(
+        'Get-DefaultIntunePolicyObjectTypes',
+        'Export-IntunePolicies',
+        'Import-IntunePolicies',
+        'Invoke-IntunePolicyAction'
+    )
+    AliasesToExport = @()
+    VariablesToExport = @()
+    CmdletsToExport = @()
+}