Update README for chat action and memory mode changes

- Document chat action indicator feature for Telegram
- Update memory mode to reflect fixed daily schedule

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

Common/Immich Album Watcher/README.md

@@ -144,6 +144,7 @@ When enabled, photos/videos are sent as media attachments to Telegram using the
 - Then sends photos/videos as media groups (albums) as replies to that message
 - Media is downloaded from Immich and uploaded to Telegram (bypasses CORS)
 - Large media lists are automatically split into multiple groups (2-10 items per group)
+- Optional chat action indicator (typing, uploading photo/video) while processing
 
 ### Limitations
 
@@ -240,14 +241,15 @@ Send scheduled notifications with photos taken on today's date in previous years
 | Option | Description |
 |--------|-------------|
 | `enable_memory_mode` | Enable/disable memory notifications |
-| `interval_hours` | How often to send (1-168 hours) |
-| `start_hour` | Hour of day for first notification (0-23) |
+| `start_hour` | Hour of day for the daily notification (0-23) |
 | `album_mode` | per_album, combined, or random |
 | `limit` | Maximum number of assets to fetch (1-100) |
 | `favorite_only` | Only fetch favorite assets |
 | `asset_type` | Filter by type (all, photo, video) |
 | `min_rating` | Minimum rating filter (1-5, 0 = no filter) |
 
+Memory notifications are sent once per day at the configured start hour.
+
 ### Memory Mode Message Template Variables
 
 | Variable | Description |