test: move area_cli tests into cli directory (#3842)

* test: move area_cli tests into cli directory

* test: include research CLI status in cli test move

tests/cli/test_docs_cli_content_length.py

@@ -0,0 +1,11 @@
+from tests.helpers.cli_loader import load_script
+from tests.helpers.db_stubs import make_core_db_stub
+
+
+def test_text_len_ignores_non_string_values(monkeypatch):
+    make_core_db_stub(monkeypatch, models=["Document", "DocumentVersion"])
+    cli = load_script("odysseus-docs")
+
+    assert cli._text_len("hello") == 5
+    assert cli._text_len(None) == 0
+    assert cli._text_len({"bad": "row"}) == 0