feat(tier0): Add New Fields to Nodes and Edges

[everaldorodrigo]

No description provided.

[sentry]

Codecov Report

❌ Patch coverage is 95.12195% with 2 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...etriever/data_tiers/tier_0/dgraph/result_models.py	95.12%	2 Missing ⚠️

Files with missing lines	Coverage Δ
...etriever/data_tiers/tier_0/dgraph/result_models.py	93.96% <95.12%> (+0.29%)	⬆️

... and 1 file with indirect coverage changes

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[tokebe]

@everaldorodrigo Please see #87 as a template for how you should change the Tier 0 data models. We don't want to have to explicitly define data model fields for anything that's not a "top-level" field, otherwise Retriever could require updates every time we add new data, which we want to avoid.

[tokebe]

superseded by #88