Add entity picker support

immich_album_watcher/services.yaml

@@ -1,17 +1,19 @@
 refresh:
   name: Refresh
-  description: Force an immediate refresh of all album data from Immich.
+  description: Force an immediate refresh of album data from Immich.
+  target:
+    entity:
+      integration: immich_album_watcher
+      domain: sensor
 
 get_recent_assets:
   name: Get Recent Assets
-  description: Get the most recent assets from a specific album.
+  description: Get the most recent assets from the targeted album.
+  target:
+    entity:
+      integration: immich_album_watcher
+      domain: sensor
   fields:
-    album_id:
-      name: Album ID
-      description: The ID of the album to get recent assets from.
-      required: true
-      selector:
-        text:
     count:
       name: Count
       description: Number of recent assets to return (1-100).