Identifies a query channels operation independently of the resolved FilterObject and QuerySorter. Used as the cache key in StateRegistry, LogicRegistry, and the offline DB so the same query consistently maps to the same logic/state instance and the same persisted row across runs.

Three shapes are supported:

• Standard for classic queries where the client knows filter + querySort upfront.

• Predefined for server-side predefined filters where the actual filter and querySort are only learned from the response. Identity must therefore be the predefined name plus the interpolation values, since those are the only stable inputs available before the response.

• Grouped for cursor-paginated grouped channel queries; identity is the stable Grouped.groupKey returned by the server.