[TASK]: Add observables to optimize constraint options.

[Tom-Szendrey]

Describe the task

• Update optimize drilldown:
  Allow for user to select these observables: (Essentially uncomment out some code)
  https://github.com/DARPA-ASKEM/terarium/blob/main/packages/client/hmi-client/src/components/workflow/ops/optimize-ciemss/tera-optimize-ciemss-drilldown.vue#L661-L665

if (model.value?.semantics?.ode.observables) {
		modelStateAndObsOptions.value.push(...model.value?.semantics?.ode.observables.map((observable: any) => observable.id));
	}

• Update pyciemss-service/hmi-client:

Needs to add _state when provided a state
Needs to add _observable when provided an obs
Currently this is done here: https://github.com/DARPA-ASKEM/pyciemss-service/blob/main/service/models/operations/optimize.py#L31

Here is a very minimal test case ran with hard coded _observable in pyciemss-service:

[Tom-Szendrey]

Pending 601-add-observables-to-risk-results being merged