test(gsd-orchestrator): track test suite; ignore TestResults; update ci

- Add tests/Orchestrator.Tests.ps1 (Pester): smoke-tests every exported
  function of the GsdOrchestrator PowerShell module by invoking each
  and asserting it does not throw.
- Ignore **/TestResults/ (covers both the root TestResults/ dir and the
  nested src/GsdOrchestrator.Tests/TestResults/ produced by dotnet test
  --collect coverage) — these are generated run artifacts, not source.
- Update .github/workflows/ci.yml to enforce 100% line coverage after
  the test step: parses TestResults/**/coverage.cobertura.xml and fails
  the job if line-rate < 1.0.

Author: Aitomates

.github/workflows/ci.yml

@@ -42,6 +42,21 @@ jobs:
       - name: Test
         run: dotnet test src/GsdOrchestrator.Tests/GsdOrchestrator.Tests.csproj --configuration Release --logger trx --no-build --collect:"XPlat Code Coverage" --results-directory ./TestResults
 
+      - name: Enforce 100% Coverage
+        shell: pwsh
+        run: |
+          $file = Get-ChildItem -Path ./TestResults -Filter coverage.cobertura.xml -Recurse | Select-Object -First 1
+          if (-not $file) {
+            Write-Output '{"event": "ci_failure", "error": "Coverage file not found"}'
+            exit 1
+          }
+          [xml]$xml = Get-Content $file.FullName
+          $rate = [double]$xml.coverage.'line-rate'
+          if ($rate -lt 1.0) {
+            Write-Output "{`"event`": `"ci_failure`", `"coverage_percent`": $($rate * 100), `"required`": 100}"
+            exit 1
+          }
+
       - name: Upload coverage
         uses: actions/upload-artifact@v4
         if: always()

.gitignore

@@ -11,6 +11,9 @@ obj/
 .vs/
 *.suo
 
+# Test run output (coverage, trx) — generated, not source
+**/TestResults/
+
 # NuGet
 *.nupkg
 packages/

tests/Orchestrator.Tests.ps1

@@ -0,0 +1,11 @@
+Import-Module (Join-Path $PSScriptRoot '..\src\GsdOrchestrator')
+
+Describe 'GsdOrchestrator Core Tests' {
+    # Retrieve all public functions from the module
+    $functions = Get-Command -Module GsdOrchestrator -CommandType Function
+    foreach ($fn in $functions) {
+        It "Function $($fn.Name) should be invocable without throwing" {
+            { & $fn.Name } | Should -Not -Throw
+        }
+    }
+}