fix: fail closed on unresolved DVC outputs

[mldangelo-oai]

Summary

• preserve structured DVC resolution status while keeping the legacy resolve_dvc_file list API
• keep partial/unresolved .dvc pointers routed through core so missing outputs become operationally incomplete coverage
• prevent unresolved-only .dvc pointers from being scanned as harmless pointer text

Validation

• PYTHONPATH=/private/tmp/modelaudit-c123 PROMPTFOO_DISABLE_TELEMETRY=1 /Users/mdangelo/code/modelaudit/.venv/bin/pytest tests/utils/sources/test_dvc_integration.py tests/test_directory_file_filtering.py::TestDirectoryFileFiltering::test_hidden_dvc_pointer_expands_hidden_artifact -q: 23 passed
• ruff check for touched files
• ruff format --check for touched files
• mypy for touched files
• git diff --check

[mldangelo-oai]

@codex review

[github-actions]

Workflow run and artifacts

Performance Benchmarks

Compared 12 shared benchmarks with a regression threshold of 15%.
Status: 0 regressions, 0 improved, 12 stable, 0 new, 0 missing.
Aggregate shared-benchmark median: 777.56ms -> 792.27ms (+1.9%).

Workload	Benchmark	Target	Size	Files	Baseline	Current	Change	Status
clean-training-checkpoint	tests/benchmarks/test_picklescan_benchmarks.py::test_picklescan_clean_training_checkpoint	safe_large	278.2 KiB	1	20.06ms	21.10ms	+5.2%	stable
suspicious-pickle-intake	tests/benchmarks/test_scan_benchmarks.py::test_scan_suspicious_pickle_intake	suspicious-intake	183.8 KiB	4	105.66ms	110.21ms	+4.3%	stable
chunked-upload-stream	tests/benchmarks/test_picklescan_benchmarks.py::test_picklescan_chunked_upload_stream	chunked_stream	278.2 KiB	1	23.20ms	23.79ms	+2.5%	stable
warm-cache-rescan	tests/benchmarks/test_scan_benchmarks.py::test_scan_warm_cached_repository_rescan	release-candidate	547.3 KiB	32	73.03ms	74.86ms	+2.5%	stable
direct-malicious-upload	tests/benchmarks/test_picklescan_benchmarks.py::test_picklescan_direct_malicious_upload	malicious_reduce	52 B	1	1.60ms	1.57ms	-2.0%	stable
mixed-model-repository	tests/benchmarks/test_scan_benchmarks.py::test_scan_release_candidate_repository	release-candidate	547.3 KiB	32	294.05ms	298.94ms	+1.7%	stable
nested-payload-review	tests/benchmarks/test_picklescan_benchmarks.py::test_picklescan_nested_payload_review[nested_hex]	nested_hex	130 B	1	486.1us	478.8us	-1.5%	stable
nested-payload-review	tests/benchmarks/test_picklescan_benchmarks.py::test_picklescan_nested_payload_review[nested_raw]	nested_raw	78 B	1	470.6us	464.4us	-1.3%	stable
padded-multi-stream-upload	tests/benchmarks/test_picklescan_benchmarks.py::test_picklescan_padded_multi_stream_upload	multi_stream_padded	4.1 KiB	1	1.67ms	1.65ms	-1.3%	stable
nested-payload-review	tests/benchmarks/test_picklescan_benchmarks.py::test_picklescan_nested_payload_review[nested_base64]	nested_base64	98 B	1	481.5us	475.6us	-1.2%	stable
single-checkpoint-preflight	tests/benchmarks/test_scan_benchmarks.py::test_scan_single_checkpoint_before_load	single_checkpoint.pkl	183.0 KiB	1	40.17ms	40.62ms	+1.1%	stable
duplicate-heavy-registry	tests/benchmarks/test_scan_benchmarks.py::test_scan_duplicate_registry_snapshot	registry-snapshot	915.2 KiB	13	216.68ms	218.11ms	+0.7%	stable

[chatgpt-codex-connector]

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[ianw-oai]

Potential regression: the new recursive DVC directory path seems to pass the full timeout and size budget into each nested scan instead of sharing the parent budget.