Show the album cover on a media tile, in the same strip as the live camera pictures (0.2.92)

A single or double-width media player tile takes Display -> Album cover
on a Guition: the cover of what plays in the icon's place, like Home
Assistant's own tile. It rides in the page's strip of 0.2.91: the request
and the answer are the same, a media player is simply among the tiles.
The app fetches a player's picture only when its address changes; a page
with a camera loads at the camera's pace with the cover reused, a page of
media tiles alone loads once, and a new track (the picture's mark in the
state, part of the page's wish) asks again at once. A player without a
picture keeps its icon and is not asked for; the double-width tile keeps
its controls; the tile over the whole page keeps the card's big cover.
Firmware 0.2.78.

Host harness 31 checks (docs/TEST_RESULTS_0292.md). CYD firmware
1,633,760 B, 89.0 %.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

docs/TEST_RESULTS_0292.md

@@ -0,0 +1,50 @@
+# Test results app 0.2.92 / firmware 0.2.78 (2026-09-20)
+
+One ask, right after 0.2.91: the album cover on a media player tile, the way Home Assistant's own tile shows it, on the
+same road as the live camera pictures. "Even via dezelfde endpoint, toch?" Yes.
+
+## What changed, and why it is small
+
+- **The strip takes media players.** The page's request (`tiles`, `size`, `bg`) and the answer (op `camera`,
+  `t: "live"`) are the same as in 0.2.91; a media player tile with `display: cover` is simply among the tiles. The
+  app tells the two apart by domain: a camera gets a snapshot at its pace, a media player its `entity_picture`,
+  fetched again only when that address changes (the same fetch as the media card's cover, `CameraFeed.cover_raw`).
+- **Two clocks in one download.** The screen loads the strip at the pace of its fastest camera; the app decides per
+  entity whether anything new is fetched from Home Assistant. A page with a 15 s camera and a Sonos loads its strip
+  every 15 s with the cover reused; a page of media tiles alone has no clock and loads once. A new track changes the
+  picture's mark in the player's state, which is part of the page's wish, so the screen asks again at once.
+- **Only players with a picture ask.** A radio station or a player that is off has no `entity_picture`; such a tile is
+  not in the request and keeps its icon. The tile over the whole page keeps the card's big cover through the older
+  route; a double-width tile keeps its controls (the cover is the standard layout with a picture).
+
+## Host harness (Mac, host build of the Guition package, real add-on code)
+
+`live_host.py` of 0.2.91 with a Sonos tile (cover) on the camera page and a page of two media tiles (a wide one with
+the volume control and a radio without a picture); 31 checks, all passing:
+
+- page 1 asks for its three live tiles and the Sonos together, with the four colours; the strip loads and every tile
+  shows its own square (offsets 0, −54, −108, −162), the Sonos' cover where its icon was;
+- the 15 s pace, the 30 s camera fetched every other load, the camera full screen and a card pausing the strip, a
+  page turn and dark mode asking again: as in 0.2.91, now with the media tile in the list;
+- the page of media tiles asks for the one player with a picture only, shows its cover beside the volume slider
+  while the radio keeps its icon, loads once (no load in 17 s), and asks again the moment the player's picture
+  address changes, loading the strip once more;
+- a player without a picture, a media tile that shows its icon and a media tile over the whole page are not in the
+  strip; the full-page tile still asks for its own cover.
+
+Found on the way: the harness first expected the radio in the request; the firmware leaves a player without a
+picture out, which is the better answer (no request for nothing).
+
+## Bench Guition (192.168.146.136, firmware 0.2.78 from this tree over OTA, local add-on 0.2.92 on the Yellow)
+
+- The Sonos in the living room (single tile, Display → Album cover) on page 1: as long as every Sonos played "TV"
+  (no `entity_picture`) the tile kept its icon and the screen asked for nothing. The moment a track with art started,
+  the state's picture mark reached the screen, the page asked for its strip (`Live pictures of
+  media_player.sonos_woonkamer on Guition Wallbox` in the add-on's log) and the tile showed the cover in the icon's
+  place (`capture_ui.py`, dark mode). A tap opened the media card with its big cover as before (69 KB, the older
+  route; its 63-150 ms loop warnings while decoding are the same as in 0.2.77). Camera.max and Buienradar keep their
+  live pictures beside it on page 8.
+
+## Builds
+
+`tools/check.sh` and `tools/check.sh --firmware` with ESPHome 2026.9.0: CYD 1,633,760 B, 89.0 % of the update slot (32 B more than 0.2.91); Guition 2,058,656 B.