Tier 1 generic field handling

[tokebe]

ES documents are now parsed into dataclasses which generically handle qualifiers and attributes, so the only field names Retriever must know are top-level.

[sentry]

Codecov Report

❌ Patch coverage is 85.50725% with 10 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...retriever/data_tiers/tier_1/elasticsearch/types.py	91.66%	3 Missing and 1 partial ⚠️
..._tiers/tier_1/elasticsearch/aggregating_querier.py	0.00%	3 Missing ⚠️
...ever/data_tiers/tier_1/elasticsearch/transpiler.py	82.35%	1 Missing and 2 partials ⚠️

Files with missing lines	Coverage Δ
...etriever/data_tiers/tier_1/elasticsearch/driver.py	48.43% <100.00%> (ø)
..._tiers/tier_1/elasticsearch/aggregating_querier.py	23.21% <0.00%> (ø)
...ever/data_tiers/tier_1/elasticsearch/transpiler.py	77.16% <82.35%> (-1.47%)	⬇️
...retriever/data_tiers/tier_1/elasticsearch/types.py	94.20% <91.66%> (-5.80%)	⬇️

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[shuchenliu]

Centralizing the attribute / qualifier processing by parsing ES hits into Edge/ Node dataclass simplifies the result conversion handling. Looks good to me!