feat(cast): photos on the TV, and a television chosen once for the session

A cast button in Videos' toolbar, at the top of Photos, in an album's bar and
in the lightbox, in a group and in Search alike. A television chosen there is
kept for the session: a film opened plays on it with the player as its remote
from the start, and a photo opened in the lightbox is shown on it, scaled to
1920x1080, upright, as JPEG. The lightbox gains a slideshow.

The relay serves one photo at /image behind the stream's token, on the desktop
and on Android; the shell, not the page, decides that the receiver loads it as
a picture.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/packages/meshbay-hub/tests/test_android_cast.py b/packages/meshbay-hub/tests/test_android_cast.py
index bc5264e..b537df7 100644
--- a/packages/meshbay-hub/tests/test_android_cast.py
+++ b/packages/meshbay-hub/tests/test_android_cast.py
@@ -103,7 +103,7 @@ def test_the_receiver_is_pointed_at_the_relay_and_nothing_else():
 def test_relay_calls_keep_their_order():
     """The page does not await each push; on a pool they could overtake."""
     channels = _read(CAST / "CastChannels.kt")
-    assert '"cast:start", "cast:push", "cast:subtitle", "cast:finish", "cast:stop"' in channels
+    assert '"cast:start", "cast:push", "cast:subtitle", "cast:image", "cast:finish", "cast:stop"' in channels
     bridge = _read(SRC / "bridge" / "Bridge.kt")
     assert "Executors.newSingleThreadExecutor()" in bridge
     assert "(if (ordered) serial else work).execute" in bridge