Update BuildWithLatestWinAppSdkDaily pipeline (#45555)

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
This pull request introduces an "artifact-based" mode for consuming the
Windows App SDK in CI pipelines, allowing builds to use NuGet packages
directly from Azure DevOps pipeline artifacts instead of public/internal
feeds. This is achieved by adding new parameters and logic to pipeline
YAML and PowerShell scripts, supporting scenarios where packages are not
yet published to a feed. The changes also improve robustness when
updating package versions and add documentation for authentication
requirements.

These changes make the pipeline more flexible and robust, enabling
builds to consume unreleased or pre-release packages directly from CI
artifacts, which is especially useful for testing and validation
scenarios.
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## PR Checklist

- [ ] Closes: #xxx
<!-- - [ ] Closes: #yyy (add separate lines for additional resolved
issues) -->
- [x] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [x] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

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or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments

<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

.pipelines/v2/ci-using-the-latest-winappsdk.yml

@@ -1,3 +1,8 @@
+# NOTE: When using artifact mode (useArtifactSource: true), the pipeline needs
+# permission to access System.AccessToken. This is automatically handled by the
+# script if SYSTEM_ACCESSTOKEN environment variable is available.
+# If you encounter authentication errors, ensure the job has oauth access enabled.
+
 trigger: none
 pr: none
 schedules:
@@ -37,6 +42,23 @@ parameters:
   - name: useExperimentalVersion
     type: boolean
     default: false
+  # Artifact mode parameters (optional)
+  - name: useArtifactSource
+    type: boolean
+    displayName: "Use Artifact Source (instead of feed)"
+    default: false
+  - name: buildId
+    type: string
+    displayName: "Windows App SDK Build ID (required only if using artifact source)"
+    default: 'N/A'
+  - name: azureDevOpsProject
+    type: string
+    displayName: "Source Project (for artifact mode, default: ProjectReunion)"
+    default: 'ProjectReunion'
+  - name: artifactName
+    type: string
+    displayName: "Artifact Name (for artifact mode, default: WindowsAppSDK_Nuget_And_MSIX)"
+    default: 'WindowsAppSDK_Nuget_And_MSIX'
 
 extends:
   template: templates/pipeline-ci-build.yml
@@ -49,3 +71,7 @@ extends:
     useLatestWinAppSDK: ${{ parameters.useLatestWinAppSDK }}
     winAppSDKVersionNumber: ${{ parameters.winAppSDKVersionNumber }}
     useExperimentalVersion: ${{ parameters.useExperimentalVersion }}
+    useArtifactSource: ${{ parameters.useArtifactSource }}
+    buildId: ${{ parameters.buildId }}
+    azureDevOpsProject: ${{ parameters.azureDevOpsProject }}
+    artifactName: ${{ parameters.artifactName }}

.pipelines/v2/templates/job-build-project.yml

@@ -74,6 +74,25 @@ parameters:
   - name: useExperimentalVersion
     type: boolean
     default: false
+  # Artifact mode parameters
+  - name: useArtifactSource
+    type: boolean
+    default: false
+  - name: azureDevOpsOrg
+    type: string
+    default: 'https://dev.azure.com/microsoft'
+  - name: azureDevOpsProject
+    type: string
+    default: 'ProjectReunion'
+  - name: buildId
+    type: string
+    default: ''
+  - name: artifactName
+    type: string
+    default: 'WindowsAppSDK_Nuget_And_MSIX'
+  - name: metaPackageName
+    type: string
+    default: 'Microsoft.WindowsAppSDK'
   - name: csProjectsToPublish
     type: object
     default:
@@ -226,6 +245,12 @@ jobs:
       parameters:
         versionNumber: ${{ parameters.winAppSDKVersionNumber }}
         useExperimentalVersion: ${{ parameters.useExperimentalVersion }}
+        useArtifactSource: ${{ parameters.useArtifactSource }}
+        azureDevOpsOrg: ${{ parameters.azureDevOpsOrg }}
+        azureDevOpsProject: ${{ parameters.azureDevOpsProject }}
+        buildId: ${{ parameters.buildId }}
+        artifactName: ${{ parameters.artifactName }}
+        metaPackageName: ${{ parameters.metaPackageName }}
   
   - ${{ if eq(parameters.useLatestWinAppSDK, false)}}:
     - template: .\steps-restore-nuget.yml

.pipelines/v2/templates/pipeline-ci-build.yml

@@ -34,6 +34,25 @@ parameters:
   - name: useExperimentalVersion
     type: boolean
     default: false
+  # Artifact mode parameters
+  - name: useArtifactSource
+    type: boolean
+    default: false
+  - name: azureDevOpsOrg
+    type: string
+    default: 'https://dev.azure.com/microsoft'
+  - name: azureDevOpsProject
+    type: string
+    default: 'ProjectReunion'
+  - name: buildId
+    type: string
+    default: ''
+  - name: artifactName
+    type: string
+    default: 'WindowsAppSDK_Nuget_And_MSIX'
+  - name: metaPackageName
+    type: string
+    default: 'Microsoft.WindowsAppSDK'
 
 stages:
   - ${{ each platform in parameters.buildPlatforms }}:
@@ -65,6 +84,12 @@ stages:
             ${{ if eq(parameters.useLatestWinAppSDK, true) }}:
               winAppSDKVersionNumber: ${{ parameters.winAppSDKVersionNumber }}
               useExperimentalVersion: ${{ parameters.useExperimentalVersion }}
+              useArtifactSource: ${{ parameters.useArtifactSource }}
+              azureDevOpsOrg: ${{ parameters.azureDevOpsOrg }}
+              azureDevOpsProject: ${{ parameters.azureDevOpsProject }}
+              buildId: ${{ parameters.buildId }}
+              artifactName: ${{ parameters.artifactName }}
+              metaPackageName: ${{ parameters.metaPackageName }}
             timeoutInMinutes: 90
 
   - stage: Build_SDK

.pipelines/v2/templates/steps-update-winappsdk-and-restore-nuget.yml

@@ -5,6 +5,25 @@ parameters:
   - name: useExperimentalVersion
     type: boolean
     default: false
+  # Artifact mode parameters
+  - name: useArtifactSource
+    type: boolean
+    default: false
+  - name: azureDevOpsOrg
+    type: string
+    default: 'https://dev.azure.com/microsoft'
+  - name: azureDevOpsProject
+    type: string
+    default: 'ProjectReunion'
+  - name: buildId
+    type: string
+    default: ''
+  - name: artifactName
+    type: string
+    default: 'WindowsAppSDK_Nuget_And_MSIX'
+  - name: metaPackageName
+    type: string
+    default: 'Microsoft.WindowsAppSDK'
 
 steps:
 - task: NuGetAuthenticate@1
@@ -12,12 +31,20 @@ steps:
 
 - task: PowerShell@2
   displayName: Update WinAppSDK Versions
+  env:
+    SYSTEM_ACCESSTOKEN: $(System.AccessToken)
   inputs:
     filePath: '$(build.sourcesdirectory)\.pipelines\UpdateVersions.ps1'
     arguments: >
       -winAppSdkVersionNumber ${{ parameters.versionNumber }}
       -useExperimentalVersion $${{ parameters.useExperimentalVersion }}
       -rootPath "$(build.sourcesdirectory)"
+      -useArtifactSource $${{ parameters.useArtifactSource }}
+      -azureDevOpsOrg "${{ parameters.azureDevOpsOrg }}"
+      -azureDevOpsProject "${{ parameters.azureDevOpsProject }}"
+      -buildId "${{ parameters.buildId }}"
+      -artifactName "${{ parameters.artifactName }}"
+      -metaPackageName "${{ parameters.metaPackageName }}"
 
 # - task: NuGetCommand@2
 #   displayName: 'Restore NuGet packages (slnx)'
@@ -36,3 +63,4 @@ steps:
     feedsToUse: 'config'
     nugetConfigPath: '$(build.sourcesdirectory)\nuget.config'
     workingDirectory: '$(build.sourcesdirectory)'
+    arguments: '/p:NoWarn=NU1602,NU1604'