feat(schedule): add matchtv schedule

gallery/sketch/schedule/api.py

@@ -0,0 +1,13 @@
+import datetime
+
+from .model import Schedule
+
+
+class ScheduleApi:
+    async def get_channels(self) -> list[str]:
+        raise NotImplementedError
+
+    async def get_channel_schedule(
+        self, channel_id: str, date: datetime.date
+    ) -> Schedule:
+        raise NotImplementedError