Get webhook URL

Return the webhook URL(s) currently configured for this channel, plus delivery status for each URL.

webhookUrl is a string when a single URL is set, an array of strings when multiple URLs are configured, or null if none is set.

Prefer webhookStatuses. The circuit breaker is per URL, not per channel. If 1 of 4 URLs is sticky-disabled, that URL is skipped; the other three still receive events. Send/receive are not affected.

Channel-level haveDisabledWebhooks, circuitState, reason, fails, trips, and timestamps are a compatibility summary of one URL (the first sticky-disabled URL, else the first configured URL). They are not "the channel is dead".

• haveDisabledWebhooks — true when at least one URL in webhookUrl is sticky auto-disabled. Live URLs still get events.
• circuitState — compressed scalar for that same primary URL: ok | degraded | open | half_open | disabled.
• disabledWebhooks — currently configured URLs that are sticky-disabled (subset of webhookUrl).
• webhookStatuses — one row per currently configured URL. Use this array to see which endpoints are live vs skipped.
• fails / trips / firstFailAt — diagnostics for support, not product UI. fails = failures in a rolling ~10 minute window (not lifetime). trips = failed recovery probes on the 15 min → 1 h → 6 h schedule (sticky disable after 3). Clients can ignore these and use webhookStatuses + disabledWebhooks only.

Sticky disable skips delivery; it does not unconfigure the URL (it stays in webhookUrl). Re-enable with POST /webhook or POST /settings. Those endpoints replace the whole list — with multiple URLs, send the full array.