fix: correct broken doc links in azure-portal-provisioning guide

- ztp-server-preparation-guide.md → server-preparation.md (all refs)
- ztp-pipeline-execution.md → automation-pipelines.md
- Remove reference to non-existent resources/microsoft PDF
- Point to official Microsoft Simplified Machine Provisioning docs

Fixes mkdocs build --strict warnings that were blocking deployment.

Author: kristopherjturner

docs/azure-portal-provisioning.md

@@ -1,15 +1,15 @@
 # Azure Local ZTP Portal Provisioning Guide
 
 !!! note "Note"
-    This guide covers the Azure Portal provisioning phase of Zero-Touch Provisioning (ZTP) for Azure Local. It picks up after the servers have been bootstrapped into the maintenance environment using the [Server Preparation Guide](ztp-server-preparation-guide.md).
+    This guide covers the Azure Portal provisioning phase of Zero-Touch Provisioning (ZTP) for Azure Local. It picks up after the servers have been bootstrapped into the maintenance environment using the [Server Preparation Guide](server-preparation.md).
 
 ## Overview
 
 This guide covers Phase 2 of Azure Local Zero-Touch Provisioning (ZTP). After completing the server preparation phase, the servers are running the maintenance environment and are ready to be provisioned from Azure.
 
 The complete ZTP workflow consists of three main phases:
 
-1. **Server Preparation** ([Server Preparation Guide](ztp-server-preparation-guide.md)) - Configure environment and prepare servers ✅
+1. **Server Preparation** ([Server Preparation Guide](server-preparation.md)) - Configure environment and prepare servers ✅
 2. **Azure Portal Provisioning** (This guide) - Collect vouchers, create sites, and provision machines via Azure
 3. **Cluster Deployment** - Deploy Azure Local instance via Azure portal or ARM template
 
@@ -27,7 +27,7 @@ The complete ZTP workflow consists of three main phases:
 Before beginning this phase, ensure the following:
 
 - **Server Preparation Complete:**
-    - All servers are running the maintenance environment (completed via [Server Preparation Guide](ztp-server-preparation-guide.md))
+    - All servers are running the maintenance environment (completed via [Server Preparation Guide](server-preparation.md))
     - Console shows "Maintenance environment setup completed successfully" on each server
     - Virtual media has been unmounted (cleanup step)
 
@@ -295,6 +295,6 @@ curl -fsSL "https://aka.ms/ztp/cleanup.sh" | bash -s -- \
 
 ## Document References
 
-- [Azure Local ZTP Server Preparation Guide](ztp-server-preparation-guide.md) — Phase 1: Server preparation and bootstrap
-- [ZTP Pipeline Execution Checklist](ztp-pipeline-execution.md) — CI/CD pipeline reference
-- [Microsoft ZTP Private Preview Documentation](../resources/microsoft/ZTP-for-Azure-Local-Private-Preview.md) — Official Microsoft reference
+- [Server Preparation Guide](server-preparation.md) — Phase 1: Server preparation and bootstrap
+- [Automation Pipelines](automation-pipelines.md) — Workflow documentation and design
+- [Microsoft Simplified Machine Provisioning](https://learn.microsoft.com/en-us/azure/azure-local/deploy/simplified-machine-provisioning) — Official Microsoft documentation