fix: align report generation with JSON output for positive/negative separation

Bug: report_per_component used scored[:args.report_top_n] which took
top N by score (all positive for components with only positive scores).
JSON correctly separated positive and negative poles.

Fix: Use same positive/negative separation logic for report as JSON.

scripts/generate_svd_json.py

@@ -336,12 +336,26 @@ def main(argv: Optional[List[str]] = None) -> int:
             report_motion_ids.extend(report_all_ids[comp_idx])
 
         # Build per_component for report (with more motions)
+        # Report needs the same positive/negative separation as JSON output
         report_per_component: List[List[Tuple[int, float]]] = []
         for comp_idx in range(args.components):
             scored = comp_scores[comp_idx]
             scored.sort(key=lambda x: x[1], reverse=True)
-            report_top = scored[: args.report_top_n]
-            report_per_component.append(report_top)
+
+            # Separate positive and negative
+            positive = [(mid, score) for mid, score in scored if score >= 0]
+            negative = [(mid, score) for mid, score in scored if score < 0]
+
+            # Get top N per pole for report (same logic as JSON but more motions)
+            report_n_pos = args.report_top_n // 2
+            report_n_neg = args.report_top_n - report_n_pos
+
+            report_pos = positive[:report_n_pos]
+            report_neg = negative[:report_n_neg]
+
+            # Combine: positive first, then negative (reversed so most negative at end)
+            report_combined = report_pos + list(reversed(report_neg))
+            report_per_component.append(report_combined)
 
     else:
         # NON-EXCLUSIVE: each component selects its own top motions (original behavior)