Add asset sorting and favorites-only filter for notifications

New notification settings for "assets added" events:
- Sort Assets By: date, rating, name, or original order
- Sort Direction: ascending or descending
- Notify Favorites Only: filter to only favorite assets

Rating sort handles null values by placing unrated assets last
(descending) or first (ascending).

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Common/Immich Album Watcher/README.md

@@ -7,6 +7,8 @@ This blueprint monitors Immich album changes and sends notifications when assets
 - Filter by hub/instance name (for multi-hub setups)
 - Monitor specific albums by name (whitelist)
 - Filter by asset type (track images only, videos only, or both)
+- Filter by favorites only (only notify about favorite assets)
+- Sort assets by date, rating, name, or keep original order
 - Send notifications to multiple targets simultaneously
 - Customizable notification messages with template variables
 - Separate templates for image and video assets
@@ -15,6 +17,7 @@ This blueprint monitors Immich album changes and sends notifications when assets
 - Support for multiple change types (assets added, removed, changed)
 - Optional: send photos/videos as Telegram media attachments
 - Optional: periodic summary notifications with album list and share URLs
+- Optional: memory mode (On This Day) for photos from today's date in previous years
 
 ## Event Data from Immich