feat(yandextv): add yandextv schedule api

gallery/easel/route/api/schedule.py

@@ -1,5 +1,20 @@
+import datetime
+
 from fastapi import FastAPI
 
+from gallery.easel.core import AppRequest
+from gallery.sketch.schedule.model import ChannelId, Schedule
+
 
 def mount(app: FastAPI):
-    pass
+    @app.get("/api/schedule/channels")
+    async def get_api_schedule_channels(request: AppRequest) -> list[ChannelId]:
+        schedule_api = request.app.state.api.schedule
+        return await schedule_api.get_channels()
+
+    @app.get("/api/schedule/{channel}/{date}")
+    async def get_api_schedule_channel_schedule(
+        request: AppRequest, channel: str, date: datetime.date
+    ) -> Schedule:
+        schedule_api = request.app.state.api.schedule
+        return await schedule_api.get_channel_schedule(ChannelId(channel), date)