clientId property
ClientId is the OAuth2/OIDC client identifier and the GLOBAL key every confidential-client resolver authenticates against (store.GetApplicationByClientId, the mint gates, Basic auth). It MUST be globally unique across ALL owners — a collision would let one app shadow another at that key. This store persists each entity as a JSON document in a shared table, so there is no per-field column to carry a DB UNIQUE index; uniqueness is enforced at the write in applications.Create/Update (ensureClientIdUnique), exactly as the (owner,name) natural key is, and store.GetApplicationByClientId resolves admin-preferring as defense-in-depth.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? clientId;