feat(app): add server-keyed session routes (#32570)

packages/app/e2e/smoke/session-timeline.spec.ts

@@ -718,7 +718,8 @@ async function navigateToSession(page: Page, directory: string, sessionId: strin
 }
 
 async function switchTitlebarSession(page: Page, sessionID: string, title: string) {
-  const href = `/${base64Encode(fixture.directory)}/session/${sessionID}`
+  console.log(process.env)
+  const href = `/server/${base64Encode(fixture.serverKey)}/session/${sessionID}`
   const tab = page.locator(`[data-slot="titlebar-tabs"] a[href="${href}"]`).first()
   await expect(tab).toBeVisible()
   await tab.click()