Refine audit output and intentional reference handling

[dd3ok]

Summary

• treat template-style and environment-rooted reference paths as intentional non-local references instead of missing repo files
• make --out write artifacts without echoing duplicate content, while preserving GitHub Actions annotations on stdout
• add eval coverage and docs for the refined behavior

Verification

• python3 -m py_compile lucid.py skills/lucid/scripts/lucid.py scripts/validate-skill.py scripts/validate-evals.py scripts/validate-no-dangerous-io.py scripts/validate-docs.py scripts/validate-package-skill.py scripts/package-skill.py
• python3 scripts/validate-docs.py
• python3 scripts/validate-skill.py
• python3 scripts/validate-evals.py
• python3 scripts/validate-no-dangerous-io.py
• python3 scripts/validate-package-skill.py
• python3 skills/lucid/scripts/lucid.py verify --root . --strict
• git diff --check

Notes

• keeps existing lucid.ignore.json suppression model; no new broad config or rule engine
• deliberately does not quiet audit --format github-actions stdout because annotations are the output contract

[gemini-code-assist]

Code Review

This pull request introduces changes to suppress duplicate stdout output when the --out option is provided for several commands, while ensuring GitHub Actions annotations are still printed. It also updates the reference-checking logic to treat template-style and environment-rooted paths as intentional non-local references rather than missing files. The reviewer feedback suggests improving the robustness of is_external_reference_path using a regex that supports all bracketed environment variables, and simplifying is_template_path_part by removing a redundant regex check and enforcing correctly paired brackets.

[chatgpt-codex-connector]

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