Add TRAPPI protein complex record

[realmarcin]

Summary

• add GO:1990070 TRAPPI protein complex as a new OTHER / MULTIPROTEIN_COMPLEX record
• curate TRAPP I synonymy, GO:0030008 parentage, yeast Bet3/Bet5/Trs20/Trs23/Trs31/Trs33 core components, Saccharomyces cerevisiae scope, ER-to-Golgi vesicle transport function, and DOI-backed TRAPPI evidence
• add a nonmechanistic yeast TRAPPI tethering graph plus discussions for unresolved subunit groundings and TRAPPI vs TRAPPII/TRAPPIII subtype boundaries
• regenerate text embeddings, README corpus stats, and rendered pages

Validation

• .venv/bin/python scripts/build_text_embedding_map.py --check
• .venv/bin/python scripts/render_pages.py --check
• .venv/bin/python scripts/check_docs.py --check
• .venv/bin/linkml-validate -s src/cellstructuremech/schema/cellstructuremech.yaml -C CellStructureRecord data/structures/other/trappi_protein_complex.yaml
• .venv/bin/python scripts/validate_strict.py --quiet data/structures/other/trappi_protein_complex.yaml
• .venv/bin/python scripts/validate_strict.py --quiet
• PATH="$PWD/.venv/bin:$PATH" .venv/bin/python scripts/validate_history.py history/records/trappi_protein_complex
• PATH="$PWD/.venv/bin:$PATH" .venv/bin/python scripts/validate_history.py
• .venv/bin/python scripts/fetch_snippets.py --verify --check
• .venv/bin/python scripts/check_trait_links.py --check
• .venv/bin/python scripts/check_curies.py --check --report reports/curie_check.tsv
• .venv/bin/python scripts/validate_id_label_correspondence.py -c conf/id_label_targets.yaml
• PATH="$PWD/.venv/bin:$PATH" .venv/bin/python scripts/run_qc.py
• git diff --check

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