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.

CHANGELOG.md

@@ -18,6 +18,28 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   site, refreshing the matrix in README and opening an issue on drift.
 - `FreshHarvestClient.async_fetch`, restored as the shared authenticated-fetch
   primitive that both the snapshot read and every write action build on.
+- `todo.fresh_harvest_box`: the order as a to-do list, so Home Assistant's own
+  conversation agent can add and remove items with no bespoke voice code.
+  Adding resolves the name against the site's search index first.
+- `switch.fresh_harvest_skip_next_order` (a switch, not a button, so the state
+  is readable and reversible) and `button.fresh_harvest_donate_next_order`
+  (a button, because donating cannot be undone).
+- `sensor.fresh_harvest_subscriptions` and `sensor.fresh_harvest_vacation_holds`,
+  each listing the detail in attributes.
+- A `freshharvest_action` event fired after every write action, carrying
+  action/success/target/detail so automations can notify on the outcome.
+
+### Fixed
+
+- Subscription parsing matched `.account-item-multi-fields`, which is the
+  heading row, so an account with a live subscription reported zero. Cells are
+  now picked by semantic class. Regression covered in `tests/test_actions.py`.
+
+### Known gaps
+
+- Un-skip raises rather than guessing: the portal's restore control only
+  appears once an order is skipped, so its endpoint has never been observed.
+- Entities are deliberately NOT exposed to the conversation agent yet.
 
 ### Notes