Module RegisterCommand 

Cocoon → registerCommand notification. Two side effects per call:

1. Insert a Proxied handler into the embedder’s command dispatch registry via VineHost::RegisterCommandInRegistry (synchronous; allows commands.executeCommand to route back to Cocoon immediately).
2. Push the command descriptor into a channel-drain coalescer that emits one sky://command/register batch per 16 ms frame, avoiding 1000+ individual renderer events during extension boot.

The coalescer holds a captured Arc<dyn RendererEmitter> so the drain task never borrows the full host across await points.

Structs

CommandBatchChannel 🔒

Statics

CMD_CHANNEL 🔒

Functions

GetOrInitChannel 🔒

RegisterCommand