Gets the state for a specific component by ID.

Extracts component states from connect_params and stores them in socket assigns.

Call this in your LiveView's mount/3:

def mount(_params, _session, socket) do
  socket = Lavash.Component.Helpers.init_component_states(socket)
  {:ok, socket}
end

Then pass the state to components:

<.live_component
  module={MyComponent}
  id="my-component"
  __lavash_initial_state__={Lavash.Component.Helpers.get_component_state(@__lavash_component_states__, "my-component")}
/>

Builds the optimistic state map for a component.

This is used to expose component state via data attributes for potential client-side access (without a JavaScript hook).