Add structural tag inference (Stage 3s) and compact eval output

Default min_why to strong_implied; add retrieval gap analysis script

eval with expanded GT and leaf metrics

Normalize GT annotations: expand implications, exclude non-evaluable tags

eval with min_why=explicit + implications

Add tag implication expansion (fox→canine→canid→mammal)

eval results with min_why=explicit bug fix

Remove data/eval_results/ from .gitignore so eval results are tracked

Fix min_why not passed to workers in parallel eval mode

Add latest eval results

Add --min-why threshold to filter Stage 3 selections by confidence level

adding tag implications file

Add diagnostic eval metrics, why-distribution tracking, and generic character filter

Add n=10 eval results for analysis

Add parallel processing to eval pipeline with ThreadPoolExecutor

Add independent character tag metrics to eval pipeline

Improve eval harness: shuffle samples, always write results

Add end-to-end evaluation harness for pipeline metrics

Expand alias filter tests with real CSV data and pipeline tests

Add alias-based character tag filtering for Stage 3

initial commit