Fix API authentication - Redbark Sync

Use the exact API key shown when it was created or rotated. Redbark only displays the secret once.

Request checklist

Send the request to https://api.redbark.com/v2.
Set Authorization: Bearer rbk_live_....
Set a supported Redbark-Version header, as shown in the API v2 overview.
Confirm the key is active and includes the scope required by the endpoint.
If the key was rotated, use the replacement secret. The old key expires after its grace period.

Read the status code

Status	Meaning
400 `version_required`	The v2 version header is missing.
401	The key is missing, malformed, revoked, expired, or otherwise invalid.
403 `insufficient_scope`	The key does not have the endpoint’s required scope.
403 `plan_upgrade_required`	The current plan does not include API access. Outside a trial, API access requires Developer or Professional.
403 `professional_required`	A Developer key called a brokerage-only endpoint.

Do not send API keys in support messages. Include the response status, error code, request method, and path instead.