feat: back up the phone's photos to a group, once a day on Wi-FiHEADmain

The Android application sends the photos taken on the phone to one folder of
one group chosen by the member (docs/MESHBAY_DESIGN.md §9.12). The phone lists
MediaStore, keeps a ledger of what was sent and hands each photo's bytes to the
page by an opaque token on the packaged origin; the page decides when a run is
due and uploads through the existing path, one photo at a time under a slot.

- Once a day from the last finished run, on an unmetered network only;
  "Back up now" asks first on mobile data. Leaving Wi-Fi stops after the file
  in flight.
- Photos already on the phone are sent by default, newest first, under
  <folder>/YYYY/MM; edits are sent beside the original as -edited-<date>.
- Additive by construction: nothing is ever deleted, renamed or replaced on
  the node, and a photo deleted on the node is not sent again.
- A confirmation names the group, owner, members, folder and size when the
  destination or starting point changes; a lasting refusal (disk full, folder
  read-only or gone, no longer a member) is said once and retried a day later.
- No ACCESS_MEDIA_LOCATION, so the platform redacts photo locations.
- A dataSync foreground service keeps a run going with the screen off.

HEIC/HEIF photos are sent but not shown in Photos yet (§15.2).

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

1 files changed, 2 insertions, 0 deletions

diff --git a/packages/meshbay-hub/tests/test_first_load_is_lean.py b/packages/meshbay-hub/tests/test_first_load_is_lean.py
index 74cd880..25638ca 100644
--- a/packages/meshbay-hub/tests/test_first_load_is_lean.py
+++ b/packages/meshbay-hub/tests/test_first_load_is_lean.py
@@ -24,6 +24,8 @@ ON_DEMAND = {
     "chat-app-settings.js", "video-app-settings.js", "music-app-settings.js",
     "photos-app-settings.js", "helloworld-app-settings.js",
     "video-player.js", "group-settings.js", "search-page.js",
+    # The Android application's photo backup: no browser or desktop has it.
+    "photo-sync.js", "photo-sync-settings.js",
 }