The cron delivery path short-circuits with an error when `toCandidate` is
falsy (line 151), before reaching `resolveOutboundTarget()` which provides
the `plugin.config.resolveDefaultTo()` fallback. The direct send path in
`targets.ts` already uses this fallback correctly.
Remove the early `!toCandidate` exit so that `resolveOutboundTarget()`
can attempt the plugin-provided default. Guard the WhatsApp allowFrom
override against falsy `toCandidate` to maintain existing behavior when
a target IS resolved.
Fixes#32355
Signed-off-by: HCL <chenglunhu@gmail.com>
586f057c24