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_sessions_cli.py

@@ -0,0 +1,39 @@
+from types import SimpleNamespace
+
+from tests.helpers.cli_loader import load_script
+from tests.helpers.db_stubs import make_core_db_stub
+
+
+def _load_sessions_cli(monkeypatch):
+    make_core_db_stub(
+        monkeypatch,
+        attributes={"SessionLocal": object, "Session": object},
+        install_core_package=True,
+    )
+    return load_script("odysseus-sessions")
+
+
+def test_serialize_normalizes_numeric_counters(monkeypatch):
+    cli = _load_sessions_cli(monkeypatch)
+    session = SimpleNamespace(
+        id="s1",
+        name="chat",
+        model="m",
+        endpoint_url="",
+        owner=None,
+        folder=None,
+        archived=False,
+        rag=False,
+        is_important=False,
+        message_count="12",
+        total_input_tokens="bad",
+        total_output_tokens=None,
+        last_accessed=None,
+        created_at=None,
+    )
+
+    out = cli._serialize(session)
+
+    assert out["message_count"] == 12
+    assert out["total_input_tokens"] == 0
+    assert out["total_output_tokens"] == 0