feat(GODT-2829): Integrate new sync service

Update imap service to use the new sync service.

The new sync state is stored as simple file on disk to avoid contention
with concurrent vault writes.

internal/bridge/types.go

@@ -32,6 +32,7 @@ type Locator interface {
 	GetLicenseFilePath() string
 	GetDependencyLicensesLink() string
 	Clear(...string) error
+	ProvideIMAPSyncConfigPath() (string, error)
 }
 
 type ProxyController interface {