fix: 保留未填报设备段归属工时

tests/test_report_allocations.py

@@ -214,6 +214,37 @@ def test_device_matched_and_unmatched_items_match_metrics_remaining_minutes():
     }
 
 
+def test_unassigned_device_segment_is_allocated_when_all_items_already_matched():
+    start_at = datetime(2026, 7, 25, 0, 0)
+    switch_at = datetime(2026, 7, 25, 8, 0)
+    end_at = datetime(2026, 7, 25, 10, 0)
+    devices = [
+        _device(start_at, device_no="23#", sort_order=0),
+        _device(switch_at, device_no="99#", sort_order=1),
+    ]
+    item = _item(id=1, good_qty=600, device_no="23#", started_at=start_at)
+    report = _report(start_at, end_at, item, devices=devices)
+
+    metrics = calculate_report_metrics(start_at, end_at, [item], devices=devices)
+    rows = build_report_allocation_drafts(report)
+
+    assert metrics["effective_minutes"] == 600
+    assert metrics["shift_day_minutes"] == 120
+    assert metrics["shift_overtime_minutes"] == 120
+    assert metrics["shift_night_minutes"] == 360
+    assert round(sum(row.effective_minutes for row in rows), 2) == metrics["effective_minutes"]
+    assert {
+        "day": round(sum(row.day_minutes for row in rows), 2),
+        "overtime": round(sum(row.overtime_minutes for row in rows), 2),
+        "night": round(sum(row.night_minutes for row in rows), 2),
+    } == {
+        "day": metrics["shift_day_minutes"],
+        "overtime": metrics["shift_overtime_minutes"],
+        "night": metrics["shift_night_minutes"],
+    }
+    assert all(row.effective_minutes == round(row.day_minutes + row.overtime_minutes + row.night_minutes, 2) for row in rows)
+
+
 def test_night_allocation_uses_meal_deducted_minutes_with_previous_date_rules():
     schedule = WorkScheduleConfig(
         day_start="08:00",