docs: add ML model handoff MBOM example

[Rul1an]

Summary

Adds a CycloneDX MBOM example for a fictional ML model handoff workflow.

The example uses formulation[] to show how a model training, evaluation, and evidence-handoff process can be represented with CycloneDX workflows, tasks, steps, commands, inputs, and outputs. It follows the same broad MBOM formulation shape as MBOM/helloworld-c/mbom.json, while using multiple tasks because the ML handoff flow has distinct training, evaluation, and handoff phases.

Changes

• Add MBOM/ml-model-handoff/mbom.json, a schema-valid CycloneDX 1.6 example.
• Add a local README for the ML model handoff example.
• Add an MBOM/README.md index covering the existing Hello World C example and this example.
• Add MBOM to the repository root BOM type table.

Notes

All model names, dataset names, metric values, workflow commands, and URLs are fictional and illustrative. They demonstrate CycloneDX structure only and do not make claims about a real model, dataset, benchmark, safety posture, compliance status, or deployment.

Refs #55.

Validation

jq . MBOM/ml-model-handoff/mbom.json

git diff --check

npx --yes ajv-cli@5.0.0 validate \
  -s bom-1.6.schema.json \
  -r spdx.schema.json \
  -r jsf-0.82.schema.json \
  -r cryptography-defs.schema.json \
  -d MBOM/ml-model-handoff/mbom.json \
  --strict=false

The AJV run reports expected unknown-format warnings for formats not loaded by ajv-cli, then validates the BOM as valid.

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds a new Manufacturing Bill of Materials (MBOM) section and an ML model handoff example to demonstrate CycloneDX MBOM/formulation workflows.

Changes:

• Adds MBOM to the top-level README BOM-type index.
• Introduces an MBOM landing README with example links.
• Adds an “ML Model Handoff” MBOM example (README + CycloneDX JSON).

Reviewed changes

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

File	Description
README.md	Adds MBOM to the BOM type index table.
MBOM/README.md	Introduces MBOM overview and links to MBOM examples.
MBOM/ml-model-handoff/README.md	Documents the ML model handoff MBOM example and what it demonstrates.
MBOM/ml-model-handoff/mbom.json	Provides the CycloneDX MBOM JSON illustrating model training/eval/handoff workflows.

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