Build Giant item enricher

pm/tasks.org

@@ -32,11 +32,11 @@
 - keep schema minimal but extensible
 
 ** evidence
-- commit:
+- commit: `42dbae1` on branch `cx`
 - tests: reviewed `giant_output/raw/history.json`, one sample raw order json, `giant_output/orders.csv`, `giant_output/items.csv`; documented schemas in `pm/data-model.org`
 - date: 2026-03-15
 
-* [ ] t1.3: build giant parser/enricher from raw json (2-4 commits)
+* [X] t1.3: build giant parser/enricher from raw json (2-4 commits)
 ** acceptance criteria
 - parser reads giant raw order json files
 - outputs `items_enriched.csv`
@@ -55,8 +55,8 @@
 
 ** evidence
 - commit:
-- tests:
-- date:
+- tests: `./venv/bin/python -m unittest discover -s tests`; `./venv/bin/python enrich_giant.py`; verified `giant_output/items_enriched.csv` on real raw data
+- date: 2026-03-16
 
 * [ ] t1.4: generate observed-product layer from enriched items (2-3 commits)