Score causal graph readiness and enhance records

[realmarcin]

Summary

• add scripts/score_causal_graphs.py and just score-causal-graphs to rank CellStructureRecord YAML files by causal-graph readiness
• add or enrich evidence-backed causal graphs across all 19 current structure records
• add history records for each curation pass and regenerate structure pages plus README corpus stats
• canonicalize edited YAML after adversarial full-suite review caught emit_structure_yaml drift in six records
• align grounded causal-graph node labels with canonical ontology labels after CI caught 12 id↔label mismatches

Adversarial review

• fixed the blocking tests/test_write_validated.py::test_every_record_round_trips_byte_identically failure in 44b7c29
• fixed the blocking validate-products / label-correspondence CI failure in af4f174
• verified causal-graph edge endpoints and node component_refs are already covered by tests/test_corpus_integrity.py
• filed follow-up Ground causal graph predicates with relation CURIEs #193 for grounded predicate_id coverage
• filed follow-up Add complementary causal graphs to single-graph records #194 for complementary graph kinds on remaining single_causal_graph records

Validation

• uv run linkml-validate -s src/cellstructuremech/schema/cellstructuremech.yaml --target-class CellStructureRecord ...
• uv run python scripts/validate_strict.py
• uv run python scripts/validate_history.py history
• uv run python scripts/render_pages.py --check
• uv run python scripts/check_docs.py --check
• uv run python scripts/validate_id_label_correspondence.py -c conf/id_label_targets.yaml
• uv run pytest tests/test_score_causal_graphs.py tests/test_scripts.py
• uv run pytest
• GitHub qc (3.10), qc (3.12), vendored-sync, identifier-liveness, and label-correspondence

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.