chore: establish project baseline

central/tests/test_ba_st_mva_parser.py

@@ -0,0 +1,9 @@
+def test_parser_extracts_item_cest_and_ncm_from_official_table_text():
+    from central.app.datasets.ba_st_mva import parse_page
+
+    records, rejected = parse_page("ITEM CEST NCM/SH DESCRIÇÃO\n3.3 03.003.00 2201.1 Água mineral 114%", 1)
+
+    assert records[0]["item"] == "3.3"
+    assert records[0]["cest"] == "03.003.00"
+    assert records[0]["ncm_sh"] == ["2201.1"]
+    assert not rejected