Refactor UI assets and harden quality checks

tests/test_schemas.py

@@ -0,0 +1,22 @@
+from karldns.schemas import _account_status, _row_text
+
+
+def test_row_text_returns_none_for_missing_or_empty_values():
+    row = {
+        "empty": "",
+        "missing": None,
+        "number": 42,
+        "text": "hello",
+    }
+
+    assert _row_text(row, "empty") is None
+    assert _row_text(row, "missing") is None
+    assert _row_text(row, "unknown") is None
+    assert _row_text(row, "number") == "42"
+    assert _row_text(row, "text") == "hello"
+
+
+def test_account_status_prefers_disabled_before_lifecycle_state():
+    assert _account_status({"disabled": True, "accepted_at": "2026-01-01"}) == "disabled"
+    assert _account_status({"accepted_at": "2026-01-01"}) == "active"
+    assert _account_status({}) == "pending"