Clean release snapshot

tests/browser/audio-session-compat.spec.ts

@@ -0,0 +1,38 @@
+import { test, expect } from '@playwright/test';
+
+test('legacy audio fader and analyser bridges stay visible in browser diagnostics', async ({ page }) => {
+  await page.goto('/');
+  await page.waitForSelector('.screen.active', { timeout: 10000 });
+
+  const result = await page.evaluate(() => {
+    const appWindow = window as any;
+    let faderValue = 1;
+    appWindow.slopsmith.audio.registerFader({
+      id: 'browser-smoke',
+      label: 'Browser Smoke',
+      min: 0,
+      max: 1,
+      step: 0.1,
+      defaultValue: 1,
+      getValue: () => faderValue,
+      setValue: (value: number) => { faderValue = value; },
+    });
+    appWindow.slopsmith.audioSession.recordBridgeHit({
+      domain: 'audio-mix',
+      bridgeId: 'audio-mix.analyser',
+      legacySurface: 'browser smoke analyser',
+      participantId: 'highway_3d',
+    });
+    const snapshot = appWindow.slopsmith.audioSession.snapshot();
+    const diagnostics = appWindow.slopsmith.capabilities.snapshotDiagnostics();
+    return {
+      hasFader: snapshot.domains['audio-mix'].participants.some((entry: any) => entry.participantId === 'fader.browser-smoke'),
+      hasAnalyserBridge: snapshot.domains['audio-mix'].bridges.some((entry: any) => entry.bridgeId === 'audio-mix.analyser'),
+      shimHit: diagnostics.compatibilityShims.some((entry: any) => entry.shimId === 'audio-mix.analyser' && entry.hitCount >= 1),
+    };
+  });
+
+  expect(result.hasFader).toBe(true);
+  expect(result.hasAnalyserBridge).toBe(true);
+  expect(result.shimHit).toBe(true);
+});