feat(android): back up WhatsApp's own chat backups, and its media if asked

A WhatsApp section takes WhatsApp's folder through the picker, sends its
encrypted Databases and Backups (not the dated copies of earlier weeks) into
<folder>/<account>-whatsapp, and names the restore set in the manifest.

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

1 files changed, 21 insertions, 0 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/platform.js b/packages/meshbay-hub/src/meshbay_hub/static/platform.js
index b1a8ae9..596c327 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/platform.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/platform.js
@@ -296,6 +296,27 @@ export const driveSync = {
 };
 
 /**
+ * Backing up WhatsApp's own folder, chosen once through the picker (its
+ * encrypted chat backups, and its media if asked), like `driveSync`.
+ */
+const waBridge = bridge && bridge.whatsappSync;
+export const whatsappSync = {
+  available: Boolean(waBridge),
+  status() { return waBridge.status(); },
+  chooseFolder() { return waBridge.chooseFolder(); },
+  forgetFolder(id) { return waBridge.forgetFolder(id); },
+  configure(settings) { return waBridge.configure(settings); },
+  plan() { return waBridge.plan(); },
+  sent(token, dir, name) { return waBridge.sent(token, dir, name); },
+  manifest() { return waBridge.manifest(); },
+  manifestSent(token) { return waBridge.manifestSent(token); },
+  completed() { return waBridge.completed(); },
+  failed(code, text) { return waBridge.failed(code, text); },
+  keepAlive(on, text) { return waBridge.keepAlive(on, text); },
+  file: (token, name, size) => rangedFile('/wasync/', token, name, size),
+};
+
+/**
  * Where every backup of this phone goes: one folder of a group the account
  * owns and is alone in (docs/MESHBAY_DESIGN.md §9.12). Android only, like
  * `photoSync`. See sync-destination.js.