1.0.12

Fixes a real production issue: a sync that kept failing (e.g. a file permanently over the plan's size/quota limit, or a device on a weak connection) would retry immediately with zero delay, forever — hammering the server and draining battery for no benefit.

• Backoff on repeated failures. A chained retry after a failed sync now waits progressively longer (2s, 4s, 8s… up to 60s) instead of firing instantly. A single clean sync resets it back to instant.
• Stop retrying permanent errors. A file that's over the plan's per-file size limit or storage quota is no longer retried every cycle — it's remembered until the file itself changes or you explicitly hit "Sync now" (e.g. right after upgrading your plan).