feat: add autonomous fiscal completion v1

tests/test_inbound_evidence_discovery.py

@@ -0,0 +1,35 @@
+from scripts.discover_inbound_fiscal_evidence import classify_evidence_source, discover_from_rows, safe_row_count
+
+
+def test_classifies_inbound_table_from_columns_not_name():
+    categories = classify_evidence_source("RANDOM_TABLE", {"CODPRODUTO", "CFOP", "NCM", "CHAVE"})
+
+    assert "ITEM" in categories
+    assert "FISCAL_ITEM" in categories
+    assert "KEY" in categories
+
+
+def test_discovery_output_is_sanitized_and_capability_based():
+    result = discover_from_rows(
+        [
+            ("RANDOM_TABLE", "CODPRODUTO", 37, 40),
+            ("RANDOM_TABLE", "XML_PAYLOAD", 261, None),
+            ("SUPPLIER_TABLE", "CNPJ", 37, 14),
+        ],
+        [("RANDOM_TABLE", "CODPRODUTO", "PRODUCTS", "CODIGO")],
+    )
+
+    assert result["tables"]["RANDOM_TABLE"]["xml_or_blob"] is True
+    assert "CNPJ" not in result["tables"]["SUPPLIER_TABLE"]["columns"]
+    assert result["relationships"] == [{"from_table": "RANDOM_TABLE", "from_field": "CODPRODUTO", "to_table": "PRODUCTS", "to_field": "CODIGO"}]
+
+
+def test_external_table_count_is_recorded_without_aborting_database():
+    class Cursor:
+        def execute(self, sql):
+            raise RuntimeError("external file is not allowed")
+
+        def fetchone(self):
+            return None
+
+    assert safe_row_count(Cursor(), "EXTERNAL_TABLE") == {"status": "ROW_COUNT_UNAVAILABLE", "error_type": "RuntimeError"}