v0.20.9

Highlights

• Add a configurable history retention limit (1-200, default 30). Once the number of history backups exceeds the limit, the oldest ones are deleted from the cloud automatically (#6).
• Change the limit from the Configuration & history tab in the web UI; the value persists per device across provider switches.
• settings/preferences now keeps the existing auto-sync and sync-scope values when they are not provided in the request.

验证：

@dickpy/dsh-cloud-sync@0.20.9 test
node test/core.test.mjs && node test/client-locale.test.mjs

core tests passed
client locale tests passed 均通过。

Full Changelog: v0.20.8...v0.20.9