fix(devices): read devices and device options through to the database

The device cache was filled once at construction, so a token minted by one
replica was unknown to every other replica already running and a token revoked
on one replica stayed valid on the others until they restarted.

- drop the eager device and device options dictionaries
- read devices and device options from the database on every query
- push the device query filters and ordering into SQL
- open the request's database context only for the api key fallback
- cover both directions against real PostgreSQL with two manager instances

MediaBrowser.Controller/Devices/IDeviceManager.cs

@@ -47,29 +47,29 @@ public interface IDeviceManager
     /// Gets the device information.
     /// </summary>
     /// <param name="id">The identifier.</param>
-    /// <returns>DeviceInfoDto.</returns>
-    DeviceInfoDto? GetDevice(string id);
+    /// <returns>A <see cref="Task"/> representing the retrieval of the device information.</returns>
+    Task<DeviceInfoDto?> GetDevice(string id);
 
     /// <summary>
     /// Gets devices based on the provided query.
     /// </summary>
     /// <param name="query">The device query.</param>
     /// <returns>A <see cref="Task{QueryResult}"/> representing the retrieval of the devices.</returns>
-    QueryResult<Device> GetDevices(DeviceQuery query);
+    Task<QueryResult<Device>> GetDevices(DeviceQuery query);
 
     /// <summary>
     /// Gets device information based on the provided query.
     /// </summary>
     /// <param name="query">The device query.</param>
     /// <returns>A <see cref="Task{QueryResult}"/> representing the retrieval of the device information.</returns>
-    QueryResult<DeviceInfo> GetDeviceInfos(DeviceQuery query);
+    Task<QueryResult<DeviceInfo>> GetDeviceInfos(DeviceQuery query);
 
     /// <summary>
     /// Gets the device information.
     /// </summary>
     /// <param name="userId">The user's id, or <c>null</c>.</param>
-    /// <returns>IEnumerable&lt;DeviceInfoDto&gt;.</returns>
-    QueryResult<DeviceInfoDto> GetDevicesForUser(Guid? userId);
+    /// <returns>A <see cref="Task{QueryResult}"/> representing the retrieval of the device information.</returns>
+    Task<QueryResult<DeviceInfoDto>> GetDevicesForUser(Guid? userId);
 
     /// <summary>
     /// Deletes a device.
@@ -105,8 +105,8 @@ public interface IDeviceManager
     /// Gets the options of a device.
     /// </summary>
     /// <param name="deviceId">The device id.</param>
-    /// <returns><see cref="DeviceOptions"/> of the device.</returns>
-    DeviceOptionsDto? GetDeviceOptions(string deviceId);
+    /// <returns>A <see cref="Task"/> representing the retrieval of the <see cref="DeviceOptions"/> of the device.</returns>
+    Task<DeviceOptionsDto?> GetDeviceOptions(string deviceId);
 
     /// <summary>
     /// Gets the dto for client capabilities.