chore: some copilot suggestions

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Lash-L

roborock/data/b01_q7/b01_q7_containers.py

@@ -245,7 +245,7 @@ class CleanRecordList(RoborockBase):
 class CleanRecordSummary(RoborockBase):
     """Represents clean record totals for B01/Q7 devices."""
 
-    total_area: int | None = None
     total_time: int | None = None
+    total_area: int | None = None
     total_count: int | None = None
     last_record_detail: CleanRecordDetail | None = None

roborock/devices/traits/b01/q7/clean_summary.py

@@ -25,6 +25,11 @@ class CleanSummaryTrait(CleanRecordSummary, Trait):
     """B01/Q7 clean summary + clean record access (via record list service)."""
 
     def __init__(self, channel: MqttChannel) -> None:
+        """Initialize the clean summary trait.
+
+        Args:
+            channel: MQTT channel used to communicate with the device.
+        """
         super().__init__()
         self._channel = channel
 
@@ -64,7 +69,7 @@ def _parse_record_detail(detail: dict | str | None) -> CleanRecordDetail | None:
             return CleanRecordDetail.from_dict(parsed)
         if isinstance(detail, dict):
             return CleanRecordDetail.from_dict(detail)
-        raise TypeError(f"Unexpected B01 record detail type: {type(detail).__name__}: {detail!r}")
+        raise RoborockException(f"Unexpected B01 record detail type: {type(detail).__name__}: {detail!r}")
 
     async def get_clean_record_details(self, *, record_list: CleanRecordList | None = None) -> list[CleanRecordDetail]:
         """Return parsed record detail objects (newest-first)."""
@@ -77,6 +82,6 @@ async def get_clean_record_details(self, *, record_list: CleanRecordList | None
             if parsed is not None:
                 details.append(parsed)
 
-        # App treats the newest record as the end of the list
+        # The app returns the newest record at the end of record_list; reverse so newest is first (index 0).
         details.reverse()
         return details