run_graphql_params_hooks_for_websockets.md

hive-router	patch

Run GraphQL parameters hooks for WebSocket operations

WebSocket subscribe payloads now run the on_graphql_params start hook and its registered end callbacks before parsing, validation, and execution. The start hook receives the synthetic WebSocket operation request and the already-decoded parameters in OnGraphQLParamsStartHookPayload.graphql_params.

When a hook ends preparation with an early response, the router sends the response's GraphQL body as a WebSocket next message followed by complete. HTTP-only response metadata, including its status and headers, cannot be represented by the GraphQL over WebSocket protocol and is not forwarded.