Complete Epic #23 presentation evidence gates

[Protocol-zero-0]

Summary

Completes Epic #23 across the requested issue order on convergence branch epic-23-evidence-ledger:

• [PR-1] M1 显著性数值修复 + EvidenceLedger 最小结构 #24: numeric significance gating and minimal EvidenceLedger builder
• [PR-2] M4 EvidenceLedger full traceability checker #27: EvidenceLedger validation and Abstract/Conclusion traceability checks
• [PR-3] M2 四个确定性检查(未解析/脚手架/串台/复读) #25: deterministic LaTeX sanity checks for unresolved refs, scaffold leakage, cross-run identity, and repetition
• [PR-4] M3 接入渲染门禁(paper_orchestra_pipeline.py:1843) #28: render-gate integration for deterministic checks
• [PR-5] M5 计算/展示依赖边界测试 #26: CPU-only presentation/import/materialization boundary tests for M5-1/2/3

Includes one preliminary branch-only regression fixture stabilization commit so the required baseline tests are green on this convergence branch. master was not modified.

Changed Files

• agents/paper_completeness.py
• agents/paper_orchestra_pipeline.py
• tests/test_paper_completeness_m1.py
• tests/test_paper_completeness_m4.py
• tests/test_latex_sanity_m2.py
• tests/test_vnext_manuscript.py
• tests/test_presentation_cpu_boundary_m5.py
• tests/fixtures/*

Tests Run

Preflight stabilization:

• pytest tests/test_pipeline_contracts.py -> 12 passed
• pytest tests/test_vnext_manuscript.py -> 5 passed

#24:

• pre-change baseline: pytest tests/test_pipeline_contracts.py -> 12 passed
• pre-change baseline: pytest tests/test_vnext_manuscript.py -> 5 passed
• milestone: pytest tests/test_paper_completeness_m1.py -> 7 passed
• regression: pytest tests/test_pipeline_contracts.py -> 12 passed
• regression: pytest tests/test_vnext_manuscript.py -> 5 passed

#27:

• pre-change baseline: pytest tests/test_pipeline_contracts.py -> 12 passed
• pre-change baseline: pytest tests/test_vnext_manuscript.py -> 5 passed
• milestone: pytest tests/test_paper_completeness_m4.py -> 6 passed
• regression: pytest tests/test_pipeline_contracts.py -> 12 passed
• regression: pytest tests/test_vnext_manuscript.py -> 5 passed
• combined: pytest tests/test_paper_completeness_m1.py tests/test_paper_completeness_m4.py -> 13 passed

#25:

• pre-change baseline: pytest tests/test_pipeline_contracts.py -> 12 passed
• pre-change baseline: pytest tests/test_vnext_manuscript.py -> 5 passed
• milestone: pytest tests/test_latex_sanity_m2.py -> 8 passed
• regression: pytest tests/test_pipeline_contracts.py -> 12 passed
• regression: pytest tests/test_vnext_manuscript.py -> 5 passed

#28:

• pre-change baseline: pytest tests/test_pipeline_contracts.py -> 12 passed
• pre-change baseline: pytest tests/test_vnext_manuscript.py -> 5 passed
• milestone: pytest tests/test_vnext_manuscript.py -> 10 passed
• regression: pytest tests/test_pipeline_contracts.py -> 12 passed
• combined: pytest tests/test_latex_sanity_m2.py tests/test_vnext_manuscript.py -> 18 passed

#26:

• pre-change baseline: pytest tests/test_pipeline_contracts.py -> 12 passed
• pre-change baseline: pytest tests/test_vnext_manuscript.py -> 10 passed
• milestone: pytest tests/test_presentation_cpu_boundary_m5.py -> 3 passed
• regression: pytest tests/test_pipeline_contracts.py -> 12 passed
• regression: pytest tests/test_vnext_manuscript.py -> 10 passed
• combined: pytest tests/test_paper_completeness_m1.py tests/test_paper_completeness_m4.py tests/test_latex_sanity_m2.py tests/test_presentation_cpu_boundary_m5.py -> 24 passed

Non-goals / Skips

• Did not modify or merge into master.
• Did not run or fake [PR-5] M5 计算/展示依赖边界测试 #26 M5-4 GPU smoke.
• Did not add synthetic or mocked compute backends.
• Did not implement cross-file LaTeX \input{content/conclusion} traceability.
• Did not modify contracts/pipeline.py or require_submission_ready().

[Copilot]

Pull request overview

This PR completes Epic #23’s “presentation evidence gates” work by (1) introducing an EvidenceLedger-based numeric significance gate, (2) adding deterministic LaTeX sanity checks (unresolved refs, scaffold leakage, cross-run identity, boilerplate repetition) and wiring them into the submission bundle render gate, and (3) adding CPU-only boundary tests to ensure presentation code paths don’t import GPU/execution dependencies.

Changes:

• Add minimal build_evidence_ledger, numeric significance gating, and EvidenceLedger traceability/schema checks in agents/paper_completeness.py.
• Expand latex_sanity_check with deterministic checks and pass state from the submission pipeline so cross-run identity gating can work.
• Add milestone/regression tests and fixtures for M1/M2/M4/M5 gates, including submission-bundle blocking tests.

Reviewed changes

Copilot reviewed 26 out of 26 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
agents/paper_completeness.py	Adds EvidenceLedger builder, numeric significance gating, traceability/schema checks, and deterministic LaTeX sanity checks.
agents/paper_orchestra_pipeline.py	Passes state into latex_sanity_check to enable state-aware deterministic gating during bundle generation.
tests/test_paper_completeness_m1.py	Adds M1 tests for numeric significance gating and minimal EvidenceLedger builder contract.
tests/test_paper_completeness_m4.py	Adds M4 tests for EvidenceLedger schema validation and Abstract/Conclusion traceability checks.
tests/test_latex_sanity_m2.py	Adds M2 tests for deterministic LaTeX sanity rules (unresolved refs, placeholders, cross-run identity, repetition).
tests/test_vnext_manuscript.py	Adds submission-bundle integration tests ensuring render-gate blocks deterministic LaTeX violations and preserves existing gates.
tests/test_presentation_cpu_boundary_m5.py	Adds CPU-only boundary tests ensuring presentation modules don’t load GPU/execution dependencies and can render/materialize offline.
tests/fixtures/*	Adds fixtures for M1/M2/M4 deterministic checks and traceability scenarios.

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