Module dispatch 

Object-safe dispatch layer.

The public handler traits (ToolHandler et al.) return impl Future (RPITIT) and so are not object-safe, which previously forced request routing into a combinatorial per-handler-combination typestate macro. The Dyn* traits here box the handler futures so a single router impl can dispatch any registered handler, and the *Slot traits expose “the registered handler, or None” uniformly across the typestate slots (Registered<H> / NotRegistered).

Adding a dispatched capability is then one Dyn/Slot pair plus one match arm — no combinatorial growth.

Traits

DynCompletionHandler

Object-safe form of CompletionHandler.

DynPromptHandler

Object-safe form of PromptHandler (only the dispatched methods).

DynResourceHandler

Object-safe form of ResourceHandler (only the dispatched methods).

DynTaskHandler

Object-safe form of TaskHandler.

DynToolHandler

Object-safe form of ToolHandler (only the dispatched methods).

PromptSlot

A prompt-handler slot.

ResourceSlot

A resource-handler slot.

TaskSlot

A task-handler slot.

ToolSlot

A tool-handler slot.