Normalize shell ordering test contracts

[cbusillo]

Summary

• add an exact-line, whitespace-normalized ordering assertion for shell safety contracts
• convert the three repeated archive/validation/manifest/export ordering chains
• preserve command boundaries while tolerating harmless indentation changes

Refs #579

Validation

• python3 -m unittest Tests/ScriptsTests/test_release_workflows.py (129 passed)
• python3 scripts/context-panel-test-lanes.py run --lane routine-ci-python
• scripts/commit-gate.sh (including 889 Swift tests)
• mutation probes: reindent passes; commented command, reordered validation, and manifest-after-export fail
• Opus and Gemini exact-SHA final reviews approved 20acbb3

Inspection

• JetBrains changed-files inspection was inconclusive because IntelliJ has no Python SDK configured for this worktree; no actionable findings were returned.