Reject front-heavy balanced overhead vehicles

Reject front-facing vehicle cutouts when an explicit top-down brief requires paired features to be equally visible. The exact public rover false positive scores 0.305 rotational balance and is rejected by this narrow fail-closed check.

app.py

@@ -2505,7 +2505,9 @@ def has_front_view_like_top_down_silhouette(content: bytes, spec: AssetSpec) ->
     when a normalized, canvas-filling silhouette contradicts explicit user terms:
     compact humanoids cannot remain upright portraits; explicitly radial bodies
     must be broad and rotationally balanced; and explicitly wide vehicles must
-    present a wide footprint. Narrow props remain exempt.
+    present a wide footprint. Vehicles whose brief explicitly requires balanced
+    paired features must also retain rotational balance instead of tapering like
+    a front-facing product shot. Narrow props remain exempt.
     """
     if spec.camera != "top_down" or spec.composition not in {"single_subject", "icon", "animation_frame"}:
         return False
@@ -2551,6 +2553,20 @@ def has_front_view_like_top_down_silhouette(content: bytes, spec: AssetSpec) ->
     )
     if explicitly_wide_vehicle and aspect >= 0.95:
         return True
+    explicitly_balanced_vehicle = explicitly_wide_vehicle and contains_any_term(
+        description,
+        (
+            "equally visible",
+            "paired wheels",
+            "paired circles",
+            "balanced footprint",
+            "symmetric footprint",
+            "symmetrical footprint",
+            "both sides equally",
+        ),
+    )
+    if explicitly_balanced_vehicle and foreground_rotational_symmetry(content) < 0.40:
+        return True
 
     narrow_subject_requested = contains_any_term(
         description,