fix: match prompt to pydantic model

[whoabuddy]

Getting errors from contribution 331 - 356:

Dec 13 15:55:42  2025-12-13 15:55:42 | ERROR    | evaluation_openroute | Pydantic validation error: 1 validation error for EvaluationOutput
Dec 13 15:55:42  originality
Dec 13 15:55:42    Field required [type=missing, input_value={'current_order': {'score..._est_cost': '$0.010068'}, input_type=dict]
Dec 13 15:55:42      For further information visit https://errors.pydantic.dev/2.12/v/missing
Dec 13 15:55:42  2025-12-13 15:55:42 | ERROR    | orchestrator         | Evaluation returned None
Dec 13 15:55:42  2025-12-13 15:55:42 | ERROR    | dao_proposal_evaluat | Evaluation returned None (v2) | proposal_id=b2fc5dd1-765e-4c25-82eb-99249e3efaef