Add image URL option for periodic summary notifications

New input `periodic_summary_image_url` allows customizing the image
attached to periodic summary Telegram messages. Defaults to official
Immich logo. Set empty for text-only notifications.

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

Common/Immich Album Watcher/README.md

@@ -159,6 +159,8 @@ When enabled, photos/videos are sent as media attachments to Telegram using the
 
 Sends a summary notification of tracked albums at regular intervals. Album names and share URLs are automatically read from the Album ID Entity's `album_name` and `share_url` attributes (if available).
 
+When Telegram media is enabled, an optional image can be attached to the summary message. By default, the official Immich logo is used. Set the **Summary Image URL** to empty to send text-only notifications.
+
 ### Summary Message Template Variables
 
 | Variable | Description |

Common/Immich Album Watcher/blueprint.yaml

@@ -548,6 +548,15 @@ blueprint:
             text:
               multiline: true
 
+        periodic_summary_image_url:
+          name: Summary Image URL
+          description: >
+            Optional image URL to include with the periodic summary notification.
+            Leave empty to send text-only notification.
+          default: "https://raw.githubusercontent.com/immich-app/immich/main/design/immich-logo.png"
+          selector:
+            text:
+
     # -------------------------------------------------------------------------
     # Scheduled Assets
     # -------------------------------------------------------------------------
@@ -955,6 +964,7 @@ variables:
   periodic_start_hour: !input periodic_start_hour
   periodic_summary_message_template: !input periodic_summary_message
   periodic_album_template: !input periodic_album_template
+  periodic_summary_image_url: !input periodic_summary_image_url
 
   # Scheduled Assets Settings
   enable_scheduled_assets: !input enable_scheduled_assets
@@ -1458,6 +1468,7 @@ action:
                           data:
                             chat_id: "{{ repeat.item }}"
                             caption: "{{ periodic_summary_formatted }}"
+                            image_url: "{{ periodic_summary_image_url }}"
                             disable_web_page_preview: "{{ telegram_disable_url_preview }}"
                             chat_action: "{{ telegram_chat_action }}"
 

manifest.json

@@ -1,3 +1,3 @@
 {
-  "version": "1.28.1"
+  "version": "1.29.0"
 }