Create Credential

Create a new credential for a target.

POST `/:target/:target_id/credentials`

Parameter	Type	Required	Description
`target`	string	Yes	Resource type: `users`, `orgs`, or `blobs`.
`target_id`	string	Yes	The unique ID of the target resource.

Parameter	Type	Required	Description
`alias`	string	Yes	Unique alias for the credential.
`type`	string	Yes	Credential provider type (e.g., `aws`).
`body`	object	Yes	Provider-specific credential details.
`description`	string	No	Description of the credential.

Parameter	Type	Description
`credential_id`	string	The unique ID of the credential.

{
  "alias": "aws-dev",
  "type": "aws",
  "body": {
    "access_key_id": "AKIA...",
    "secret_access_key": "secret..."
  }
}