Generate an error when a Provider is added to the Bindings but does not have an associated port `contract()`

[jean-michelet]

It does help developers (and Agents) to understand the Stratify features correctly.
Probably need a notBindedYetSet or something else in the spirit, at module level we progressively clear.

export const tasksModule = createModule({
  name: "tasks",
  bindings:[ProviderButNoContractDeclared]
}