test: cover Rust emitter list nullability

[flyingrobots]

Summary

• Add focused Rust emitter coverage for [String]! and [String!] shapes
• Assert generated Rust preserves list nullability as Vec<Option<String>> and Option<Vec<String>>
• Record the regression coverage in the changelog

Closes #690

Validation

• cargo test -p wesley-emit-rust emits_single_list_nullability_shapes
• cargo test -p wesley-emit-rust
• pnpm exec prettier --check CHANGELOG.md
• git diff --check
• pnpm run preflight
• pre-push Rust product preflight

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Review details

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 1d6458d8-aec1-4c68-9563-fc0303cfeac4

📥 Commits

Reviewing files that changed from the base of the PR and between 95ab470 and 1c0b789.

📒 Files selected for processing (2)

• CHANGELOG.md
• crates/wesley-emit-rust/src/lib.rs

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch test/rust-emitter-nullable-lists

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[github-actions]

🔍 The Case of Pull Request #697

Schema Sets

• ecommerce
• reference

Schema Set ecommerce

Plain-English Readout

• Holmes (evidence investigation): The Holmes report is unavailable because the workflow finished without a readable holmes-report.json artifact.
• Watson (independent verification): The Watson report is unavailable because the workflow finished without a readable watson-report.json artifact.
• Moriarty (trend forecast): The Moriarty forecast is unavailable because the workflow finished without a readable moriarty-report.json artifact.

Suggested next actions

1. Regenerate the HOLMES artifacts and make sure holmes-report.json is uploaded before trusting this PR summary.
2. Regenerate the WATSON artifacts and make sure watson-report.json is uploaded before trusting this PR summary.
3. Regenerate the MORIARTY artifacts and make sure moriarty-report.json is uploaded before trusting this PR summary.

🕵️ SHA-lock HOLMES full report for ecommerce (click to expand)

Report unavailable for holmes: readable holmes-report.md artifact not found.

🩺 Dr. WATSON full report for ecommerce (click to expand)

Report unavailable for watson: readable watson-report.md artifact not found.

🔮 Professor MORIARTY full report for ecommerce (click to expand)

Report unavailable for moriarty: readable moriarty-report.md artifact not found.

---

Schema Set reference

Plain-English Readout

• Holmes (evidence investigation): The Holmes report is unavailable because the workflow finished without a readable holmes-report.json artifact.
• Watson (independent verification): The Watson report is unavailable because the workflow finished without a readable watson-report.json artifact.
• Moriarty (trend forecast): The Moriarty forecast is unavailable because the workflow finished without a readable moriarty-report.json artifact.

Suggested next actions

1. Regenerate the HOLMES artifacts and make sure holmes-report.json is uploaded before trusting this PR summary.
2. Regenerate the WATSON artifacts and make sure watson-report.json is uploaded before trusting this PR summary.
3. Regenerate the MORIARTY artifacts and make sure moriarty-report.json is uploaded before trusting this PR summary.

🕵️ SHA-lock HOLMES full report for reference (click to expand)

Report unavailable for holmes: readable holmes-report.md artifact not found.

🩺 Dr. WATSON full report for reference (click to expand)

Report unavailable for watson: readable watson-report.md artifact not found.

🔮 Professor MORIARTY full report for reference (click to expand)

Report unavailable for moriarty: readable moriarty-report.md artifact not found.

---

📚 Glossary (what the Holmes terms mean)

• HOLMES: Wesley’s main evidence investigation. It decides whether the cited proof is strong enough to justify shipping this commit.
• WATSON: An independent verification pass. It checks Holmes’s citations and score math instead of trusting them blindly.
• MORIARTY: A readiness forecast over time. It is advisory trend analysis, not the release gate itself.
• Schema coverage score (SCS): How much of the schema has direct supporting evidence across generated artifacts and cited proof.
• Test confidence index (TCI): How much test evidence exists for constraints, policies, relationships, and operations.
• Migration risk index (MRI): How risky the schema change is to roll out. Lower is better.
• Evidence trust: Whether the report is backed by exact citations, whole-file citations, or coarse references. Weak trust means the claim may be directionally right but not specific enough to trust blindly.
• Citation quality: A count of exact line-span citations versus whole-file or coarse references.
• ELEMENTARY: Ready to ship based on the current evidence.
• REQUIRES INVESTIGATION: More work or review is needed before shipping.
• YOU SHALL NOT PASS: Do not ship this change in its current state.

---

Machine-readable reports are grouped by schema set in workflow artifacts.

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Filed at 221B Repository Street

[flyingrobots]

Activity Summary

Item	Severity	File	Commit	Outcome
Rust emitter single-list nullability coverage	P3	crates/wesley-emit-rust/src/lib.rs, CHANGELOG.md	1c0b789e	Clean. Added focused coverage for [String]! and [String!]; PR body includes Closes #690.

Verification:

• cargo test -p wesley-emit-rust emits_single_list_nullability_shapes
• cargo test -p wesley-emit-rust
• pnpm exec prettier --check CHANGELOG.md
• git diff --check
• pnpm run preflight
• pre-push Rust product preflight
• gh pr checks 697

Review state: no unresolved review threads; no Changes Requested; CodeRabbit required status is passing with only a visible rate-limit notice. HOLMES-family jobs pass; posted report content is advisory and non-blocking.