Suppress MAR fallback noise in Save/Install and remove test-oriented information output

[Copilot]

When MAR is searched before other repositories, normal 404 Not Found responses for packages not present in MAR were being emitted as user-visible errors, even when a later repository could satisfy the request. In addition, container registry auth-path internals were emitting Information-stream messages used only by tests.

• Container registry fallback error classification

  • Updated ContainerRegistryServerAPICalls.GetHttpResponseJObjectUsingDefaultHeaders(...) to classify ResourceNotFoundException as:
    • FullyQualifiedErrorId = "PackageNotFound"
    • ErrorCategory = ObjectNotFound
  • This aligns MAR 404 behavior with existing fallback logic so per-repository misses do not surface as misleading user errors during multi-repo search.

• Removed test-only Information stream output

  • Replaced WriteInformation("Value of isRepositoryUnauthenticated: ...") with WriteDebug(...) in container registry auth flow.
  • Eliminates noisy Information output from normal cmdlet usage while preserving diagnosability via Debug stream.

• Adjusted affected tests to match intended behavior

  • Updated publish/save/install tests that previously asserted MAR fallback noise or relied on Information-stream internals.
  • New expectations validate no extra error/info output for successful fallback scenarios.

catch (ResourceNotFoundException e)
{
    errRecord = new ErrorRecord(
        exception: e,
        "PackageNotFound",
        ErrorCategory.ObjectNotFound,
        _cmdletPassedIn);
}

• Fixes Multiple Cmdlets emits unneeded log/errors #1993

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[adityapatwardhan]

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[Copilot]

Pull request overview

This PR reduces end-user noise during multi-repository Save/Install scenarios by treating container-registry (MAR) “not found” responses as normal per-repository misses (instead of user-visible errors), and removes test-oriented Information-stream output from the container registry auth flow.

Changes:

• Reclassified container registry ResourceNotFoundException errors in GetHttpResponseJObjectUsingDefaultHeaders(...) as PackageNotFound / ObjectNotFound to align with fallback search behavior.
• Replaced container registry auth-path WriteInformation(...) with WriteDebug(...) to avoid Information-stream noise in normal cmdlet usage.
• Updated Save/Install/Publish tests to assert no extra error/info output for successful fallback scenarios.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/code/ContainerRegistryServerAPICalls.cs	Adjusts container registry not-found error classification for fallback behavior; removes Information-stream output from auth flow.
test/SavePSResourceTests/SavePSResourceLocal.Tests.ps1	Updates expectations so successful fallback produces no per-repo error noise.
test/InstallPSResourceTests/InstallPSResourceRepositorySearching.Tests.ps1	Updates expectations for multi-repo search to avoid MAR “miss” errors when a lower-priority repo succeeds.
test/PublishPSResourceTests/PublishPSResourceContainerRegistryServer.Tests.ps1	Removes reliance on Information-stream internals for registry-auth assertions.

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[adityapatwardhan]

/azp run

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