* fix(cron): clear delivery routing fields from cron edit
cron edit could set delivery channel/to/thread-id/account but could not unset them: an empty value (e.g. --to "") builds delivery.X = undefined, which is omitted from the JSON-RPC patch, so mergeCronDelivery never sees the key and the field is silently kept. The gateway RPC already accepts an explicit null to clear each field (CronDeliveryPatchSchema + mergeCronDelivery via normalizeOptionalString); the CLI just never sent it.
Add --clear-channel/--clear-to/--clear-thread-id/--clear-account, each emitting null (mirroring the existing --clear-model), with mutual-exclusion guards against the matching set flag and against --webhook.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(cron): preserve delivery defaults when clearing routes
* fix(cron): validate cleared prefixed routes
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Co-authored-by: ly-wang19 <ly-wang19@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: Vincent Koc <25068+vincentkoc@users.noreply.github.com>
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