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

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, 45 insertions, 0 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/zh-CN.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/zh-CN.js
index 709eb65..d7b0aeb 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/zh-CN.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/zh-CN.js
@@ -1263,4 +1263,49 @@ export default {
   'native.node_account_confirm': '这台电脑上的 node 已为 {current} 设置。改为为 {next} 设置吗？它将不再为 {current} 提供其托管的群组。',
   'native.browser_access_confirm': '允许从浏览器登录吗？应用会在您使用的每个 node 上留下您的身份，并加以封存，只有您的密码短语配合您的 hub 账户才能打开。',
   'native.declined': '已取消，未做任何更改。',
+
+  // Photo backup, Android only (photo-sync.js, photo-sync-settings.js).
+  'photosync.heading': "照片备份",
+  'photosync.intro': "每天一次，通过 Wi-Fi 将这部手机拍摄的照片发送到您某个群组的文件夹。从手机删除的照片会保留在群组中。",
+  'photosync.setup': "设置",
+  'photosync.change': "更改",
+  'photosync.turn_off': "关闭",
+  'photosync.now': "立即备份",
+  'photosync.permission_needed': "MeshBay 需要访问这部手机上的照片。",
+  'photosync.permission_allow': "允许访问",
+  'photosync.permission_partial': "访问权限仅限于您选择的照片：在您允许访问全部照片之前，新照片不会被备份。",
+  'photosync.group': "群组",
+  'photosync.choose_group': "选择群组",
+  'photosync.checking_group': "正在读取群组的文件夹…",
+  'photosync.group_offline': "目前没有托管此群组的 node 在线。请在其上线后重试。",
+  'photosync.no_folder': "此群组没有您可以上传、且其照片标签页会显示的文件夹。",
+  'photosync.folder': "文件夹",
+  'photosync.albums': "这部手机上的相册",
+  'photosync.album_camera': "相机",
+  'photosync.album_count': "{n} 张照片 · {size}",
+  'photosync.scope_existing': "手机上已有的照片，然后是新照片",
+  'photosync.scope_new': "仅从现在起拍摄的照片",
+  'photosync.start': "开始备份",
+  'photosync.confirm': "您的照片将发送到 {group}（由 @{owner} 托管，{members} 位成员）的文件夹 {folder}。此群组的所有成员都可以查看和下载这些照片。\n\n将发送 {count} 张照片（{size}），之后每天发送一次新照片。\n\n您之后可以删除已发送的内容，但无法删除他人已下载的副本。",
+  'photosync.confirm_new': "您的照片将发送到 {group}（由 @{owner} 托管，{members} 位成员）的文件夹 {folder}。此群组的所有成员都可以查看和下载这些照片。\n\n新照片将每天发送一次。\n\n您之后可以删除已发送的内容，但无法删除他人已下载的副本。",
+  'photosync.metered_confirm': "您正在使用移动数据 — {count} 张照片，{size}。仍要发送吗？",
+  'photosync.summary': "{group} (@{owner}) → {folder}",
+  'photosync.other_account': "已为 @{account} 设置。请以 @{account} 登录以继续，或在此重新设置。",
+  'photosync.sent_total': "已发送照片：{n}",
+  'photosync.last_run': "上次备份：{when}",
+  'photosync.never': "尚未备份",
+  'photosync.state_waiting_wifi': "正在等待 Wi-Fi",
+  'photosync.state_connecting': "正在连接群组…",
+  'photosync.state_sending': "正在发送 {done} / {total}",
+  'photosync.state_offline': "群组的 node 均不在线；稍后重试",
+  'photosync.state_interrupted': "已中断 — 将在下次有机会时继续",
+  'photosync.state_up_to_date': "已是最新",
+  'photosync.notif_progress': "正在备份照片 — {done} / {total}",
+  'photosync.fail_disk_full': "照片备份已停止：node 的磁盘已满。",
+  'photosync.fail_read_only': "照片备份已停止：该文件夹不再接受上传。",
+  'photosync.fail_no_folder': "照片备份已停止：该文件夹已不在群组中。",
+  'photosync.fail_unavailable': "照片备份已停止：该文件夹所在的磁盘未连接到 node。",
+  'photosync.fail_not_member': "照片备份已停止：您已不再是此群组的成员。",
+  'photosync.fail_permission': "照片备份已停止：MeshBay 已无法访问照片。",
+  'photosync.fail_other': "照片备份已停止。",
 };