Fix: Apply strict arg parsing for prime eval

[d42me]

Closes ENG-2705

---

Note

Enforce strict CLI parsing for prime eval run.

• Remove context_settings={"allow_extra_args": True, "ignore_unknown_options": True} from the run command
• Drop unused ctx: typer.Context parameter from run_eval_cmd

Impact: Unknown/extra args now error instead of being ignored, improving validation and consistency.

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