Gate AIGuard producer lineage shape in Lab bundle

[hyeokjun32]

Summary

• update Runtime Intelligence AIGuard fixture with producer-lineage source/stage/count shape fields
• require Lab bundle manifest gate to validate AIGuard producer_lineage shape markers
• propagate the validated AIGuard raw-context marker into the CI artifact gate
• document that the bundle gate checks AIGuard preserved producer-lineage shape

Validation

• python -m pytest tests/test_runtime_intelligence_bundle_manifest.py tests/test_runtime_intelligence_ci_template.py tests/test_runtime_intelligence_smoke_script.py -q -p no:cacheprovider
• bash scripts/smoke_runtime_intelligence_chain.sh --output-dir /private/tmp/inferedgelab_runtime_intelligence_chain_check
• python -m pytest -q -p no:cacheprovider
• git diff --check