Dashboard Studio 1.8.0: vacuum card, clock position and background, light groups

- Vacuum card: status, battery, start/pause, dock, locate, suction
  power and an optional live map from a camera or image entity
- Clock: 3x3 text position picker and a background image from links or
  Immich albums (shared slideshow code with the Photos card), dimmable
- Light card lists the lights of a light group with their own switches;
  picking a group grows the card to fit

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

dashboard_studio/DOCS.md

@@ -49,6 +49,9 @@ Bins use the integration's own colors (GFT green, Papier blue, PMD maroon, and s
 
 Pick a weather entity in the clock's settings to show the current conditions and temperature under the time. Today's high and low come from Home Assistant's forecast, refreshed every half hour. Tap the weather to see all its details.
 
+- **Text position:** place the time anywhere in the card with the 3×3 grid: top left, top, top right, left, center, right, bottom left, bottom or bottom right.
+- **Background image:** choose image links (one per line) or Immich albums. With more than one photo the clock fades between them; set how often. **Darken the image** keeps the time readable on bright photos (30% by default), and the text turns white with a soft shadow.
+
 ### Horizontal scroll and swipe cards
 
 These cards hold other cards. Select one in edit mode, pick a card type under **Cards** and press **Add**. The new card opens straight away so you can set it up; **←** takes you back. Use the arrows to reorder cards, and open a card to change or remove it.
@@ -58,6 +61,14 @@ These cards hold other cards. Select one in edit mode, pick a card type under **
 
 Cards inside a container work like anywhere else, and appliance cards inside them still hide themselves when the appliance is off.
 
+### Light groups
+
+When the light card points at a light group, it also lists every light in the group, each with its own switch and brightness. The group's own switch and slider still control all of them at once. When you pick a group, the card grows to four rows so the list fits. Turn off **For a light group, show each light** to hide the list.
+
+### Vacuum
+
+Shows the robot's status and battery, buttons to start or pause, send it back to the dock and locate it, and the suction power levels it supports. Optionally add a map: pick the camera or image entity that your vacuum integration provides (for example Roborock or Valetudo), and it refreshes every few seconds. If the battery level is a separate sensor in your integration, pick it under **Battery sensor**.
+
 ### Media players
 
 One card can control several players. With more than one, a row of buttons at the top switches between them, and a small animated equalizer marks the ones that are playing. The card starts on whatever is playing. It shows the album art, title and artist, with previous, play/pause and next buttons and a volume slider. A player that is off gets a **Turn on** button instead. You can hide players that are off from the switcher.