Fix logo/label zoom sync in scatter plots (#4)

- Add 'Show all labels' toggle for scatter plots (261c66b829897ea5a0a9d3e6ccb946465e485471)
- Fix logo zoom behavior in scatter plots (d64aeca239902b50b48c88e8b3fc0d91f904d4a0)
- Fix logo/label zoom sync - use same y coords as labels (04932e5361cc72a2a0455f5db0709f81fdb49627)
- Resolve merge conflict - keep data coords for logos (9a7549466e87c84b85c0f49f051b940098dc9af2)

leaderboard_transformer.py

@@ -1274,32 +1274,34 @@ def _plot_scatter_plotly(
 
         if harness_uri is not None:
             # Composite: stack model on top, harness on bottom
-            # Use "paper" yref so offset stays relative when zooming
-            model_y_domain = min(1, domain_y + STACKED_Y_OFFSET)
-            harness_y_domain = max(0, domain_y - STACKED_Y_OFFSET)
+            # Use data coordinates (x, y) so logos zoom/pan together with labels
+            y_offset = 0.8  # Offset above the data point (in score units)
             layout_images.append(dict(
                 source=model_logo_uri,
-                xref="x", yref="paper",
-                x=x_log, y=model_y_domain,
-                sizex=STACKED_SIZE_X, sizey=STACKED_SIZE_Y,
+                xref="x", yref="y",
+                x=x_log, y=y_val + y_offset,
+                sizex=STACKED_SIZE_X * (x_max_log - x_min_log), 
+                sizey=STACKED_SIZE_Y * (y_max - y_min),
                 xanchor="center", yanchor="middle",
                 layer="above",
             ))
             layout_images.append(dict(
                 source=harness_uri,
-                xref="x", yref="paper",
-                x=x_log, y=harness_y_domain,
-                sizex=STACKED_SIZE_X, sizey=STACKED_SIZE_Y,
+                xref="x", yref="y",
+                x=x_log, y=y_val - y_offset,
+                sizex=STACKED_SIZE_X * (x_max_log - x_min_log),
+                sizey=STACKED_SIZE_Y * (y_max - y_min),
                 xanchor="center", yanchor="middle",
                 layer="above",
             ))
         else:
-            # Single marker - use "paper" yref so logo moves with x zoom but stays in relative y position
+            # Single marker - use data coordinates so logo zooms/pans with labels
             layout_images.append(dict(
                 source=model_logo_uri,
-                xref="x", yref="paper",
-                x=x_log, y=domain_y,
-                sizex=SINGLE_SIZE_X, sizey=SINGLE_SIZE_Y,
+                xref="x", yref="y",
+                x=x_log, y=y_val,
+                sizex=SINGLE_SIZE_X * (x_max_log - x_min_log), 
+                sizey=SINGLE_SIZE_Y * (y_max - y_min),
                 xanchor="center", yanchor="middle",
                 layer="above",
             ))