src/services/CloudService
Renderer service layer for cloud provider operations (remote backup + sync).
Remarks
This service is the only renderer-facing module that should directly invoke the preload bridge cloud domain. UI components must call this service (or store operations built on top of it) rather than accessing the raw Electron preload bridge directly.
The initial implementation supports a filesystem-backed provider owned by Electron main. This enables users to point Uptime Watcher at an existing synced folder (Dropbox/Google Drive/etc.) without embedding OAuth flows.