test: AUT-1545 add git lifecycle markers

[svcnemo-autobot]

Background

Exercise the production Git and PR lifecycle for qualification pass 00375e37.

What changed

Added the requested root-level hello.md and world.md lifecycle markers in separate commits.

Details

flowchart LR
  A[hello.md] --> B[world.md] --> C[PR lifecycle]

Loading

Both files contain only the supplied UUID and a trailing newline.

Tested

• Exact content, one-line, and trailing-newline checks passed for both files.
• Each staged diff contained only its requested file.
• Pre-commit not run: uv is unavailable in the mandated Ubuntu workstation.

[copy-pr-bot]

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[svcnvidia-nemo-ci]

/ok to test 737d9f8