fix: unify completed item visibility

tests/test_habit_safety.py

@@ -1,6 +1,6 @@
-from datetime import UTC, date, datetime, timedelta
+from datetime import date, timedelta
 
-from tests.test_mvp_backend import boot
+from tests.test_mvp_backend import boot, local_today
 
 
 def create_habit(client, **overrides):
@@ -97,7 +97,7 @@ def test_habit_update_rejects_non_finite_numeric_target_and_max_value(client):
 def test_habit_log_post_rejects_non_finite_value(client):
     boot(client)
     habit = create_habit(client).json()
-    day = datetime.now(UTC).date().isoformat()
+    day = local_today().isoformat()
 
     for value in ("NaN", "Infinity", "-Infinity"):
         response = client.post(
@@ -110,7 +110,7 @@ def test_habit_log_post_rejects_non_finite_value(client):
 def test_habit_log_put_rejects_non_finite_value(client):
     boot(client)
     habit = create_habit(client).json()
-    day = datetime.now(UTC).date().isoformat()
+    day = local_today().isoformat()
 
     for value in ("NaN", "Infinity", "-Infinity"):
         response = client.put(
@@ -147,7 +147,7 @@ def test_archived_habit_rejects_edit_logs_pause_and_active_permanent_delete(clie
 
     habit = create_habit(client).json()
     hid = habit["id"]
-    day = datetime.now(UTC).date().isoformat()
+    day = local_today().isoformat()
     assert client.put(f"/api/v1/habits/{hid}/logs/{day}", json={"value": 1}).status_code == 200
     assert client.delete(f"/api/v1/habits/{hid}").status_code == 204