[sdk_v2] migrate sdk_v2 and build pipelines to public gh

.github/workflows/sdk_v2/Foundry Local Core SDK Build.yml

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+#################################################################################
+#                              OneBranch Pipelines                              #
+# This pipeline was created by EasyStart from a sample located at:              #
+#   https://aka.ms/obpipelines/easystart/samples                                #
+# Documentation:  https://aka.ms/obpipelines                                    #
+# Yaml Schema:    https://aka.ms/obpipelines/yaml/schema                        #
+# Retail Tasks:   https://aka.ms/obpipelines/tasks                              #
+# Support:        https://aka.ms/onebranchsup                                   #
+#################################################################################
+
+trigger: none # https://aka.ms/obpipelines/triggers
+
+parameters: # parameters are shown up in ADO UI in a build queue time
+- name: 'debug'
+  displayName: 'Enable debug output'
+  type: boolean
+  default: false
+- name: 'isRelease'
+  displayName: 'Release build'
+  type: boolean
+  default: false
+
+variables:
+  CDP_DEFINITION_BUILD_COUNT: $[counter('', 0)] # needed for onebranch.pipeline.version task https://aka.ms/obpipelines/versioning
+  BUILD_ID: $[counter(variables['Build.SourceBranchName'], 0)] # branch-specific counter that resets for each new branch
+  DEBIAN_FRONTEND: noninteractive
+  LinuxContainerImage: 'mcr.microsoft.com/onebranch/azurelinux/build:3.0' # https://eng.ms/docs/products/onebranch/infrastructureandimages/containerimages/linuximages/marinerazurelinux/azurelinux
+  WindowsContainerImage: 'onebranch.azurecr.io/windows/ltsc2022/vse2022:latest' # https://aka.ms/obpipelines/containers
+  VERSION: '0.9.0.$(BUILD_ID)'
+  PRERELEASE_IDENTIFIER: 'dev'
+
+resources:
+  repositories:
+    - repository: templates
+      type: git
+      name: OneBranch.Pipelines/GovernedTemplates
+      ref: refs/heads/main
+
+extends:
+  template: v2/OneBranch.NonOfficial.CrossPlat.yml@templates # https://aka.ms/obpipelines/templates
+  parameters:
+    git:
+      fetchDepth: 1
+    featureFlags:
+      EnableCDPxPAT: false
+      WindowsHostVersion: '1ESWindows2022'
+    globalSdl:
+      tsa:
+        enabled: false
+    stages:
+      - template: templates/stages-build-cs.yml
+        parameters:
+          version: $(VERSION)
+          isRelease: ${{ parameters.isRelease }}
+          prereleaseIdentifier: $(PRERELEASE_IDENTIFIER)
+
+      - template: templates/stages-build-js.yml
+        parameters:
+          version: $(VERSION)
+          isRelease: ${{ parameters.isRelease }}
+          prereleaseIdentifier: $(PRERELEASE_IDENTIFIER)

.github/workflows/sdk_v2/Foundry Local Core SDK WinML Build.yml

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+#################################################################################
+#                              OneBranch Pipelines                              #
+# This pipeline was created by EasyStart from a sample located at:              #
+#   https://aka.ms/obpipelines/easystart/samples                                #
+# Documentation:  https://aka.ms/obpipelines                                    #
+# Yaml Schema:    https://aka.ms/obpipelines/yaml/schema                        #
+# Retail Tasks:   https://aka.ms/obpipelines/tasks                              #
+# Support:        https://aka.ms/onebranchsup                                   #
+#################################################################################
+
+trigger: none # https://aka.ms/obpipelines/triggers
+
+parameters: # parameters are shown up in ADO UI in a build queue time
+- name: 'debug'
+  displayName: 'Enable debug output'
+  type: boolean
+  default: false
+- name: 'isRelease'
+  displayName: 'Release build'
+  type: boolean
+  default: false
+
+variables:
+  CDP_DEFINITION_BUILD_COUNT: $[counter('', 0)] # needed for onebranch.pipeline.version task https://aka.ms/obpipelines/versioning
+  BUILD_ID: $[counter(variables['Build.SourceBranchName'], 0)] # branch-specific counter that resets for each new branch
+  DEBIAN_FRONTEND: noninteractive
+  LinuxContainerImage: 'mcr.microsoft.com/onebranch/azurelinux/build:3.0' # https://eng.ms/docs/products/onebranch/infrastructureandimages/containerimages/linuximages/marinerazurelinux/azurelinux
+  WindowsContainerImage: 'onebranch.azurecr.io/windows/ltsc2022/vse2022:latest' # https://aka.ms/obpipelines/containers
+  VERSION: '0.9.0.$(BUILD_ID)'
+  PRERELEASE_IDENTIFIER: 'dev'
+
+resources:
+  repositories:
+    - repository: templates
+      type: git
+      name: OneBranch.Pipelines/GovernedTemplates
+      ref: refs/heads/main
+
+extends:
+  template: v2/OneBranch.NonOfficial.CrossPlat.yml@templates # https://aka.ms/obpipelines/templates
+  parameters:
+    git:
+      fetchDepth: 1
+    featureFlags:
+      EnableCDPxPAT: false
+      WindowsHostVersion: '1ESWindows2022'
+    globalSdl:
+      tsa:
+        enabled: false
+    stages:
+      - template: templates/stages-build-cs.yml
+        parameters:
+          version: $(VERSION)
+          isRelease: ${{ parameters.isRelease }}
+          prereleaseIdentifier: $(PRERELEASE_IDENTIFIER)
+          isWinML: true
+
+      - template: templates/stages-build-js.yml
+        parameters:
+          version: $(VERSION)
+          isRelease: ${{ parameters.isRelease }}
+          prereleaseIdentifier: $(PRERELEASE_IDENTIFIER)
+          isWinML: true

.github/workflows/sdk_v2/templates/sdk-version.yml

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+parameters:
+  - name: version
+    type: string
+  - name: isRelease
+    type: boolean
+    default: false
+  - name: prereleaseIdentifier
+    type: string
+    default: ''
+
+steps:
+  - task: PowerShell@2
+    displayName: 'Generate Custom Version'
+    inputs:
+      targetType: 'inline'
+      script: |
+        $baseVersion = "${{ parameters.version }}"
+        $isRelease = [System.Convert]::ToBoolean("${{ parameters.isRelease }}")
+        $prereleaseId = "${{ parameters.prereleaseIdentifier }}".Trim()
+
+        if ($isRelease -and [string]::IsNullOrEmpty($prereleaseId)) {
+          # Official release: 0.0.1
+          $customVersion = $baseVersion
+          Write-Host "Official release version: $customVersion"
+        } elseif ($isRelease -and -not [string]::IsNullOrEmpty($prereleaseId)) {
+          # Prerelease: 0.0.1-beta.timestamp.commit
+          $timestamp = (Get-Date).ToUniversalTime().ToString("yyyyMMddTHHmmss")
+          $shortCommitId = "$(Build.SourceVersion)".Substring(0, 8)
+          $customVersion = "$baseVersion-$prereleaseId.$timestamp.$shortCommitId"
+          Write-Host "Prerelease version ($prereleaseId): $customVersion"
+        } else {
+          # Dev build: 0.0.1-timestamp.commit
+          $timestamp = (Get-Date).ToUniversalTime().ToString("yyyyMMddTHHmmss")
+          $shortCommitId = "$(Build.SourceVersion)".Substring(0, 8)
+          $customVersion = "$baseVersion-$timestamp.$shortCommitId"
+          Write-Host "Development version: $customVersion"
+        }
+
+        Write-Host "Generated custom version: $customVersion"
+        Write-Host "##vso[task.setvariable variable=ProjectVersion]$customVersion"
+        # vso[task.setvariable...] sets ProjectVersion as a pipeline variable to be used in subsequent tasks

.github/workflows/sdk_v2/templates/stages-build-cs.yml

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+parameters:
+  - name: version
+    type: string
+  - name: isRelease
+    type: boolean
+    default: false
+  - name: prereleaseIdentifier
+    type: string
+    default: ''
+  - name: isWinML
+    type: boolean
+    default: false
+
+stages:
+  - stage: cs
+    jobs:
+      - job: cs
+        pool:
+          type: windows
+          vmImage: 'windows-latest'
+        variables:
+          ob_outputDirectory: '$(Build.SourcesDirectory)/out'
+          buildConfiguration: 'Release'
+        steps:
+          - checkout: self
+            clean: true
+
+          - task: UseDotNet@2
+            displayName: 'Use .NET 9 SDK'
+            inputs:
+              packageType: 'sdk'
+              version: '9.0.x'
+              installationPath: '$(Agent.ToolsDirectory)\dotnet'
+
+          - template: sdk-version.yml
+            parameters:
+              version: ${{ parameters.version }}
+              isRelease: ${{ parameters.isRelease }}
+              prereleaseIdentifier: ${{ parameters.prereleaseIdentifier }}
+
+          - task: DotNetCoreCLI@2
+            displayName: 'Restore dependencies'
+            inputs:
+              command: 'restore'
+              projects: $(Build.SourcesDirectory)\foundry-local-sdk\sdk_v2\cs\src\Microsoft.AI.Foundry.Local.csproj
+              feedsToUse: 'config'
+              nugetConfigPath: '$(Build.SourcesDirectory)\foundry-local-sdk\sdk_v2\cs\NuGet.config'
+              restoreArguments: '/p:UseWinML=${{ parameters.isWinML }}'
+              # No TargetFramework override: we want to restore for all frameworks in the project (net8.0 is the minimum supported)
+
+          - task: DotNetCoreCLI@2
+            displayName: 'Build solution'
+            inputs:
+              command: 'build'
+              projects: $(Build.SourcesDirectory)\foundry-local-sdk\sdk_v2\cs\src\Microsoft.AI.Foundry.Local.csproj
+              arguments: '--no-restore --configuration $(buildConfiguration) /p:UseWinML=${{ parameters.isWinML }}'
+              # No TargetFramework override: we want to build for all frameworks in the project (net8.0 is the minimum supported) 
+
+          - checkout: git://windows.ai.toolkit/test-data-shared
+            displayName: 'Checkout test-data-shared for Chat/Audio Client Tests'
+            lfs: true
+            persistCredentials: true
+
+          - task: PowerShell@2
+            displayName: 'Checkout specific commit in test-data-shared'
+            inputs:
+              targetType: 'inline'
+              workingDirectory: '$(Build.SourcesDirectory)/test-data-shared'
+              script: |
+                Write-Host "Current directory: $(Get-Location)"
+                git checkout 231f820fe285145b7ea4a449b112c1228ce66a41
+                if ($LASTEXITCODE -ne 0) {
+                  Write-Error "Git checkout failed."
+                  exit 1
+                }
+                Write-Host "`nDirectory contents:"
+                Get-ChildItem -Recurse -Depth 2 | ForEach-Object { Write-Host "  $($_.FullName)" }
+
+          - task: DotNetCoreCLI@2
+            displayName: 'Run Foundry Local Core tests'
+            inputs:
+              command: 'test'
+              projects: $(Build.SourcesDirectory)\foundry-local-sdk\sdk_v2\cs\test\FoundryLocal.Tests\Microsoft.AI.Foundry.Local.Tests.csproj
+              arguments: '--verbosity normal /p:UseWinML=${{ parameters.isWinML }}'
+              workingDirectory: '$(Build.SourcesDirectory)'
+
+          # Sign DLLs after building but before packing
+          - task: PowerShell@2
+            displayName: 'Find target framework directory'
+            inputs:
+              targetType: 'inline'
+              script: |
+                $basePath = "$(Build.SourcesDirectory)\foundry-local-sdk\sdk_v2\cs\src\bin\$(buildConfiguration)"
+                Write-Host "Searching in base path: $basePath"
+                Write-Host "Directory contents:"
+                Get-ChildItem -Path $basePath | ForEach-Object { Write-Host "  $($_.Name)" }
+
+                $targetDir = Get-ChildItem -Path $basePath -Directory -Filter "net8.0*" | Select-Object -First 1
+                Write-Host "Target framework name: $($targetDir.Name)"
+                Write-Host "##vso[task.setvariable variable=TargetFramework]$($targetDir.Name)"
+
+          # NOTE: Manual pack using PowerShell with --no-build instead of DotNetCoreCLI@2 task
+          # 
+          # When UseWinML=true, the project's TargetFramework changes from 'net8.0' to 'net8.0-windows10.0.26100.0'
+          # causing build outputs to be placed in a different directory (e.g., bin/Release/net8.0-windows10.0.26100.0/).
+          # 
+          # The DotNetCoreCLI@2 pack task with various parameter combinations failed to locate the signed DLLs
+          # in the WinML target framework directory. Using 'dotnet pack --no-build' directly with /p:UseWinML
+          # allows the pack operation to correctly resolve the output path based on the project's UseWinML
+          # condition evaluation, ensuring it finds the signed binaries in the correct location.
+          # 
+          # This approach works for both standard (net8.0) and WinML (net8.0-windows10.0.26100.0) builds
+          # by letting the project naturally evaluate UseWinML and determine the correct target framework path.
+          - task: PowerShell@2
+            displayName: 'Pack NuGet package'
+            inputs:
+              targetType: 'inline'
+              script: |
+                $projectPath = "$(Build.SourcesDirectory)\foundry-local-sdk\sdk_v2\cs\src\Microsoft.AI.Foundry.Local.csproj"
+                $outputDir = "$(Build.SourcesDirectory)\foundry-local-sdk\sdk_v2\cs\bin"
+                $version = "$(ProjectVersion)"
+                $config = "$(buildConfiguration)"
+                $useWinML = "${{ parameters.isWinML }}"
+
+                Write-Host "Packing project: $projectPath"
+                Write-Host "Output directory: $outputDir"
+                Write-Host "Version: $version"
+                Write-Host "Configuration: $config"
+                Write-Host "UseWinML: $useWinML"
+
+                & dotnet pack $projectPath --no-build --configuration $config --output $outputDir /p:PackageVersion=$version /p:UseWinML=$useWinML /p:IncludeSymbols=true /p:SymbolPackageFormat=snupkg --verbosity normal
+
+                if ($LASTEXITCODE -ne 0) {
+                    Write-Error "dotnet pack failed with exit code $LASTEXITCODE"
+                    exit $LASTEXITCODE
+                }
+
+                Write-Host "Pack completed successfully"
+                Write-Host "Generated packages:"
+                Get-ChildItem -Path $outputDir -Filter "*.nupkg" | ForEach-Object { Write-Host "  $($_.Name)" }
+                Get-ChildItem -Path $outputDir -Filter "*.snupkg" | ForEach-Object { Write-Host "  $($_.Name)" }
+
+          - task: CopyFiles@2
+            displayName: 'Copy signed NuGet package files'
+            inputs:
+              SourceFolder: '$(Build.SourcesDirectory)\foundry-local-sdk\sdk_v2\cs\bin'
+              Contents: |
+                *.nupkg
+                *.snupkg
+              TargetFolder: '$(ob_outputDirectory)'
+
+          # Optional
+          - task: PowerShell@2
+            displayName: 'Verify NuGet package signatures'
+            inputs:
+              targetType: 'inline'
+              script: |
+                $packages = Get-ChildItem -Path "$(ob_outputDirectory)" -Filter "*.nupkg"
+                foreach ($package in $packages) {
+                    Write-Host "Verifying signature for: $($package.FullName)"
+                    try {
+                        nuget verify -signature "$($package.FullName)"
+                        if ($LASTEXITCODE -eq 0) {
+                            Write-Host "✓ Signature verified successfully for: $($package.Name)" -ForegroundColor Green
+                        } else {
+                            Write-Warning "⚠ Signature verification returned non-zero exit code for: $($package.Name)"
+                        }
+                    }
+                    catch {
+                        Write-Warning "⚠ Could not verify signature for: $($package.Name) - Error: $_"
+                    }
+                }