feat(advisor-comparison): wire build_advisor_comparison into report_builder

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

webapp/services/report_builder.py

@@ -26,7 +26,7 @@ from webapp.models import (
     SampleHistoryEntry,
     SampleScore,
 )
-from webapp.services import question_history, run_reader
+from webapp.services import advisor_comparison, question_history, run_reader
 
 
 # Number of equal-width buckets used for metric score histograms.
@@ -200,6 +200,7 @@ def build_report(run_dir: Path, metrics: list[str]) -> ReportData:
             metric_weights=metric_weights,
             doc_weights=doc_weights,
             token_usage=token_usage,
+            advisor_comparison=None,
         )
 
     score_rows_list = frame.to_dict(orient="records")
@@ -227,6 +228,13 @@ def build_report(run_dir: Path, metrics: list[str]) -> ReportData:
         exclude_run_id=current_run_id
     )
 
+    scenario_name = str(metadata.get("scenario_name") or "")
+    comparison = (
+        advisor_comparison.build_advisor_comparison(run_dir, scenario_name, metrics)
+        if scenario_name
+        else None
+    )
+
     return ReportData(
         metrics=metrics,
         metric_means=rounded_means,
@@ -239,4 +247,5 @@ def build_report(run_dir: Path, metrics: list[str]) -> ReportData:
         metric_weights=metric_weights,
         doc_weights=doc_weights,
         token_usage=token_usage,
+        advisor_comparison=comparison,
     )