Add control entities: box to-do list, skip switch, donate button, subscriptions

The to-do list exists so Home Assistant's own conversation agent can manage the
order through HassListAddItem rather than through anything bespoke. Skip is a
switch because skipped/not-skipped is state worth reading back; donate is a
button because it cannot be undone. Un-skip raises rather than guessing at an
endpoint that has never been observed.

Fixes subscription parsing, which matched the heading row and so reported zero
on an account that has one.

custom_components/freshharvest/coordinator.py

@@ -9,6 +9,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryAuthFailed
 from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
 
+from .actions import FreshHarvestActions
 from .api import (
     AccountSnapshot,
     FreshHarvestAuthError,
@@ -34,10 +35,15 @@ class FreshHarvestCoordinator(DataUpdateCoordinator[AccountSnapshot]):
             config_entry=entry,
         )
         self.client = client
+        self.actions = FreshHarvestActions(client)
 
     async def _async_update_data(self) -> AccountSnapshot:
         try:
-            return await self.client.async_get_snapshot()
+            snapshot = await self.client.async_get_snapshot()
+            # Two extra pages per refresh, so three requests every six hours.
+            snapshot.subscriptions = await self.actions.async_list_subscriptions()
+            snapshot.vacation_holds = await self.actions.async_list_vacation_holds()
+            return snapshot
         except FreshHarvestAuthError as err:
             raise ConfigEntryAuthFailed(str(err)) from err
         except FreshHarvestError as err: