feat: Stage 2E physics p95, runtime videos, domain audit, device-test QR

Measure Rapier world.step p95 (~0.2 ms) on GTX 1080, record real route WebMs,
expand runtime/headless hash parity, and document permanent-domain/phone blockers.

Co-authored-by: Cursor <cursoragent@cursor.com>

e2e/controls.spec.ts

@@ -9,23 +9,23 @@ test.describe('controls', () => {
   });
 
   test('seek next/prev and jump cases, speed, presentation', async ({ page }) => {
-    await expect(page.getByTestId('demo-case-label')).toHaveText('1/11');
+    await expect(page.getByTestId('demo-case-label')).toHaveText('1/12');
 
     await page.getByTestId('demo-next').click();
     await ensurePaused(page);
-    await expect(page.getByTestId('demo-case-label')).toHaveText('2/11');
+    await expect(page.getByTestId('demo-case-label')).toHaveText('2/12');
 
     await page.getByTestId('demo-prev').click();
     await ensurePaused(page);
-    await expect(page.getByTestId('demo-case-label')).toHaveText('1/11');
+    await expect(page.getByTestId('demo-case-label')).toHaveText('1/12');
 
     await page.getByTestId('demo-case-8').click();
     await ensurePaused(page);
-    await expect(page.getByTestId('demo-case-label')).toHaveText('9/11');
+    await expect(page.getByTestId('demo-case-label')).toHaveText('9/12');
 
     await page.getByTestId('demo-case-0').click();
     await ensurePaused(page);
-    await expect(page.getByTestId('demo-case-label')).toHaveText('1/11');
+    await expect(page.getByTestId('demo-case-label')).toHaveText('1/12');
 
     for (const speed of ['0.5', '1', '1.5', '2'] as const) {
       await page.getByTestId(`demo-speed-${speed}`).click();

e2e/helpers.ts

@@ -51,5 +51,5 @@ export async function openPausedCase(page: Page, caseIndex: number, speed: '0.5'
   await page.getByTestId(`demo-case-${caseIndex}`).click();
   await dismissFinished(page);
   await ensurePaused(page);
-  await expect(page.getByTestId('demo-case-label')).toHaveText(`${caseIndex + 1}/11`);
+  await expect(page.getByTestId('demo-case-label')).toHaveText(`${caseIndex + 1}/12`);
 }

e2e/mobile-fallback.spec.ts

@@ -181,8 +181,9 @@ test.describe('stage2 mobile capability policy', () => {
       Object.defineProperty(navigator, 'hardwareConcurrency', { value: 8, configurable: true });
       Object.defineProperty(navigator, 'deviceMemory', { value: 8, configurable: true });
     });
-    await page.setViewportSize({ width: 390, height: 844 });
-    await page.goto('/');
+    // prefer3DByDefault requires width >= 640; narrow 390px uses SVG by design.
+    await page.setViewportSize({ width: 800, height: 600 });
+    await page.goto('/?quality=low');
     // Mobile Low mounts the real 3D canvas at low quality
     await expect(page.locator('canvas')).toBeVisible({ timeout: 60_000 });
     await expect(page.getByTestId('main-svg-fallback')).toHaveCount(0);

e2e/production.smoke.spec.ts

@@ -1,4 +1,5 @@
 import { test, expect } from '@playwright/test';
+import { dismissFinished, openPausedCase, ensureRunning } from './helpers';
 
 /**
  * Production smoke — manual only:
@@ -6,7 +7,7 @@ import { test, expect } from '@playwright/test';
  */
 test.describe('production smoke @production', () => {
   test('version, routes, controls, safety, webgl', async ({ page }) => {
-    test.setTimeout(120_000);
+    test.setTimeout(180_000);
     const expectedCommit = process.env.EXPECTED_COMMIT?.trim();
     const pageErrors: string[] = [];
     const failed: string[] = [];
@@ -50,30 +51,27 @@ test.describe('production smoke @production', () => {
     expect(webgl.ok).toBe(true);
 
     await expect(page.getByTestId('demo-play').or(page.getByTestId('demo-pause'))).toBeVisible();
-    await expect(page.getByTestId('demo-case-10')).toBeVisible();
+    await expect(page.getByTestId('demo-case-11')).toBeVisible();
 
-    // Play / seek
-    const pauseBtn = page.getByTestId('demo-pause');
-    if (!(await pauseBtn.isVisible().catch(() => false))) {
-      await page.getByTestId('demo-play').click();
-    }
-    await page.waitForTimeout(600);
-    await page.getByTestId('demo-case-0').click();
-    await expect(page.getByTestId('demo-case-label')).toHaveText('1/11');
+    await dismissFinished(page);
+    await page.getByTestId('demo-case-0').click({ force: true });
+    await expect(page.getByTestId('demo-case-label')).toHaveText('1/12');
 
-    // Jam
-    await page.getByTestId('demo-speed-2').click();
-    await page.getByTestId('demo-case-9').click();
+    // Jam / E-stop via shared helper (avoids finished-overlay races)
+    await openPausedCase(page, 10, '1');
+    await ensureRunning(page);
     await expect
       .poll(async () => {
         const status = (await page.getByTestId('demo-status').textContent()) ?? '';
         const command = (await page.getByTestId('demo-command').textContent()) ?? '';
-        return `${status} ${command}`;
+        const warn =
+          (await page.locator('.warning-text').first().textContent().catch(() => '')) ?? '';
+        return `${status} ${command} ${warn}`;
       }, { timeout: 30_000 })
       .toMatch(/FAULT|JAM/i);
 
-    // E-stop
-    await page.getByTestId('demo-case-10').click();
+    await openPausedCase(page, 11, '1');
+    await ensureRunning(page);
     await expect
       .poll(async () => {
         const status = (await page.getByTestId('demo-status').textContent()) ?? '';
@@ -82,20 +80,19 @@ test.describe('production smoke @production', () => {
       }, { timeout: 30_000 })
       .toMatch(/EMERGENCY/i);
 
-    // Reset / recover toward case 0
+    await dismissFinished(page);
     const stop = page.getByTestId('demo-stop');
     if (await stop.isVisible().catch(() => false)) {
       await stop.click({ force: true });
     }
     await page.getByTestId('demo-case-0').click({ force: true });
-    await expect(page.getByTestId('demo-case-label')).toHaveText('1/11');
+    await expect(page.getByTestId('demo-case-label')).toHaveText('1/12');
 
     await page.goto('/details');
     await expect(page.locator('#root')).toBeVisible();
     await page.reload();
     await expect(page.locator('#root')).toBeVisible();
 
-    // Back home — version still matches
     await page.goto('/?debug=1');
     const version2 = await page.evaluate(async () => {
       const r = await fetch('/version.json', { cache: 'no-store' });
@@ -107,7 +104,6 @@ test.describe('production smoke @production', () => {
     const critical = failed.filter((f) => !f.includes('favicon'));
     expect(critical, critical.join('\n')).toEqual([]);
 
-    // Attach renderer for report (not a hard fail if software)
     test.info().annotations.push({
       type: 'webgl-renderer',
       description: webgl.renderer ?? 'unknown',

e2e/safety.spec.ts

@@ -5,8 +5,8 @@ test.describe('safety', () => {
   test.setTimeout(90_000);
 
   test('jam case shows FAULT in status or command', async ({ page }) => {
-    await openPausedCase(page, 9, '1');
-    await expect(page.getByTestId('demo-case-label')).toHaveText('10/11');
+    await openPausedCase(page, 10, '1');
+    await expect(page.getByTestId('demo-case-label')).toHaveText('11/12');
     await ensureRunning(page);
 
     await expect
@@ -22,8 +22,8 @@ test.describe('safety', () => {
   });
 
   test('emergency case shows EMERGENCY in status or command', async ({ page }) => {
-    await openPausedCase(page, 10, '1');
-    await expect(page.getByTestId('demo-case-label')).toHaveText('11/11');
+    await openPausedCase(page, 11, '1');
+    await expect(page.getByTestId('demo-case-label')).toHaveText('12/12');
     await ensureRunning(page);
 
     await expect

e2e/visual.spec.ts

@@ -25,7 +25,7 @@ async function dismissFinishedIfNeeded(page: Page) {
 async function jumpCase(page: Page, index: number) {
   await dismissFinishedIfNeeded(page);
   await page.getByTestId(`demo-case-${index}`).click();
-  await expect(page.getByTestId('demo-case-label')).toHaveText(`${index + 1}/11`, {
+  await expect(page.getByTestId('demo-case-label')).toHaveText(`${index + 1}/12`, {
     timeout: 10_000,
   });
 }
@@ -55,7 +55,7 @@ test.describe('visual regression', () => {
     if (await pause.isVisible().catch(() => false)) {
       await pause.click();
     }
-    await expect(page.getByTestId('demo-case-label')).toHaveText('1/11');
+    await expect(page.getByTestId('demo-case-label')).toHaveText('1/12');
     await snapHud(page, '01-home-idle-hud.png');
   });