fix: polish pass for traffic, nav, icons, contact email reveal and dashcam robustness

tests/unit/dashcam-feed.test.ts

@@ -9,7 +9,6 @@ import {
 } from '@/journey/dashcam-feed';
 import { DASHCAM_LENS, createDashcamLens, driftTarget } from '@/scene/world/dashcam-lens';
 import {
-  chapterLabel,
   dashcamClock,
   dashcamTitle,
   frameBottomLeft,
@@ -117,25 +116,25 @@ describe('dashcam telemetry', () => {
     sectionLabel: 'Infrastructure',
     chapter: 'pre-dawn',
     exit: '04',
-    routePercent: 47,
+    routePercent: 45,
     clock: '03:51',
     name: 'Luca Pîslaru',
     city: 'Bucharest',
   };
 
   it('formats the document title', () => {
-    expect(dashcamTitle(telemetry)).toBe('DASHCAM · 47% · INFRASTRUCTURE · 03:51');
+    expect(dashcamTitle(telemetry)).toBe('DASHCAM · 45% · INFRASTRUCTURE · 03:51');
   });
 
   it('formats the frame plates and the credit', () => {
-    expect(frameTopLeft(telemetry)).toBe('DASHCAM · PRE DAWN · EXIT 04');
-    expect(frameBottomLeft(telemetry)).toBe('ROUTE 47% · INFRASTRUCTURE');
+    expect(frameTopLeft(telemetry)).toBe('DASHCAM · EXIT 04');
+    expect(frameBottomLeft(telemetry)).toBe('ROUTE 45% · INFRASTRUCTURE');
     expect(postcardCredit(telemetry.name, telemetry.city)).toBe('NIGHT SHIFT · LUCA PÎSLARU · BUCHAREST');
-    expect(chapterLabel('selected-builds')).toBe('SELECTED BUILDS');
   });
 
-  it('rounds and clamps route progress', () => {
-    expect(routePercent(0.474)).toBe(47);
+  it('rounds and clamps route progress on the tab title\'s 5% step', () => {
+    expect(routePercent(0.474)).toBe(45);
+    expect(routePercent(0.476)).toBe(50);
     expect(routePercent(1.4)).toBe(100);
     expect(routePercent(-1)).toBe(0);
     expect(routePercent(Number.NaN)).toBe(0);