Feature Request: Integrate external ontologies (UniProt, ChEBI)

Summary

Integrate external ontology sources (starting with UniProt and ChEBI) into the dynamic ontology pipeline.

Context

Dynamic ontology currently works with local/domain terms; external ontology enrichment is listed as follow-up work.

Problem

Domain coverage can remain low for biomedical/scientific terms without external canonical vocabularies.

Proposed Scope

• Add import/normalization adapters for UniProt and ChEBI.
• Add source provenance metadata to grounded terms.
• Handle versioning/sync strategy for external updates.
• Define conflict-resolution policy between local and external terms.

Acceptance Criteria

• External source adapters implemented behind feature flags/config
• Provenance included in grounded term metadata
• Conflicts resolved deterministically
• Integration tests cover import + grounding paths

References

• docs/handovers/dynamic-ontology-handover.md
• docs/src/dynamic-ontology.md

Start with docs/handovers/dynamic-ontology-handover.md and docs/src/dynamic-ontology.md to understand the existing dynamic ontology pipeline and its grounding paths. Then identify where import, metadata, configuration, and integration tests belong. Done means UniProt and ChEBI adapters, provenance, deterministic conflict handling, configurable synchronization, and passing import-to-grounding integration tests.