feat: add taxonomic information about organisms

[emilylm]

📌 Summary

This PR introduces a taxonomy_info table for organism-level taxonomy metadata. It also updates broker claim responses to include sample.kind, and aligns related validation messages and tests.

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🔄 Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Refactor (code change that neither fixes a bug nor adds a feature)
• 📚 Documentation update
• ⚙️ CI / build / tooling change

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🧩 Key Changes

• Add a new taxonomy_info table, model, schemas, service layer, API endpoints, and bulk import support.
• Migrate augustus_dataset_name out of organism into taxonomy_info, and expose taxonomy info as nested organism data.
• Include sample.kind in broker claim responses and update related tests and assembly-helper error messaging.

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✅ Checklist

• Tests are passing locally / in CI
• New tests have been added for new or changed functionality
• Self-review completed
• Documentation updated (if needed)
• No sensitive data or secrets included

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🔍 Review Notes

• Please review the API shape change carefully: augustus_dataset_name is no longer a top-level organism field and now lives under taxonomy_info.

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📎 Related Issues / Tickets

• Closes # AP-263
• Related to #