Evaluation: Fix judge run display

Is your feature request related to a problem?
v2 runs do not compute cosine similarity and do not interact with Langfuse. However, the run cards and detail view still display cosine columns and Langfuse trace links, which are empty or broken for judge runs.

Describe the solution you'd like

• Implement a check for is_judge_run in EvalRunCard, EvalRunsList, and the run detail page
• Remove cosine similarity summary and per-item cosine columns for judge runs
• Hide Langfuse trace links for judge runs while retaining the native score_trace_url path
• Keep the rendering path for v1 unchanged

Start by locating EvalRunCard, EvalRunsList, and the run detail page, then trace how is_judge_run and score_trace_url are provided to them. Verify the existing v1 rendering path before updating the judge-run branches. Done means judge runs hide cosine summaries, per-item cosine columns, and Langfuse links while retaining native score_trace_url links; v1 output remains unchanged.