fix: make nightdrive signage reliable and legible

tests/helpers/scene-instrumentation.ts

@@ -10,6 +10,23 @@ export interface SceneInstrumentationSnapshot {
   routeLabelsDrawn: string[];
   clearColors: string[];
   unhandledRejections: string[];
+  signFrames: SignFrameInstrumentation[];
+}
+
+export interface SignFrameInstrumentation {
+  now: number;
+  visible: boolean;
+  targetId: string;
+  phase: string;
+  progress: number;
+  opacity: number;
+  activeSectionId: string;
+  direction: number;
+  corridor: string;
+  viewportProfile: string;
+  bounds: { left: number; top: number; right: number; bottom: number; width: number; height: number };
+  texture: { width: number; height: number; anisotropy: number; fontReadyWhenDrawn: boolean };
+  rendererPixelRatio: number;
 }
 
 type InstrumentedWindow = Window & {
@@ -34,6 +51,7 @@ export async function installSceneInstrumentation(page: Page): Promise<void> {
       routeLabelsDrawn: [],
       clearColors: [],
       unhandledRejections: [],
+      signFrames: [],
       animationFrameIds: new Set<number>(),
       audioContexts: [],
     };
@@ -135,6 +153,11 @@ export async function installSceneInstrumentation(page: Page): Promise<void> {
       const reason = event.reason;
       state.unhandledRejections.push(reason instanceof Error ? reason.message : String(reason));
     });
+    window.addEventListener('portfolio-sign-frame', (event) => {
+      const detail = (event as CustomEvent<SignFrameInstrumentation>).detail;
+      if (!detail || state.signFrames.length >= 600) return;
+      state.signFrames.push(structuredClone(detail));
+    });
   });
 }
 
@@ -150,6 +173,7 @@ export async function readSceneInstrumentation(page: Page): Promise<SceneInstrum
       routeLabelsDrawn: [...state.routeLabelsDrawn],
       clearColors: [...state.clearColors],
       unhandledRejections: [...state.unhandledRejections],
+      signFrames: state.signFrames.map((frame) => structuredClone(frame)),
     };
   });
 }