Fix reporting of failed analysis operations

[Changjian Wang (changjian-wang)]

Summary

• detect raw analysis envelopes whose final service status is Failed
• convert nested service errors into the existing structured ServiceError model
• cover LRO/inline and binary/URL analysis paths
• verify CLI failures return exit code 1, write a failed report entry, and do not write a result file

This fixes Azure DevOps Bug 39540887 without adding an extension allowlist. The service remains the source of truth for supported content formats.

Validation

• core copyright header check, Ruff, mypy, and all unit tests pass
• standalone Ruff, mypy, core unit tests, remaining unit tests, and offline integration tests pass
• tests/unit/test_public_docs.py::test_pypi_readme_links_to_product_readme cannot pass in this Windows checkout because packages/standalone/README.md was checked out as a regular file with core.symlinks=false; this is unrelated to the change
• the repository ci.sh has CRLF line endings in this checkout, so equivalent CI commands were run directly with .venv\Scripts\python.exe