fix: resolve 6 remaining Playwright e2e test failures on CI

- archive-tab: replace waitForFunction with waitForURL for ?open= intent
  consumption, increase test timeout to 300s for slow rootNavigationState
  init on CI
- launcher-tab: use Control+t on Linux instead of Meta+t to match app's
  keyboard shortcut definitions for non-Mac platforms
- new-workspace: add waitForSidebarHydration to wait for daemon
  connection before checking sidebar rows, add re-navigation fallback
  if app redirects during hydration, increase timeouts
- setup-streaming: use waitForTerminalContent (xterm buffer API) instead
  of fragile .xterm-rows CSS text matching, wait for terminal attachment
  before checking content

packages/app/e2e/archive-tab.spec.ts

@@ -19,7 +19,7 @@ test.describe("Archive tab reconciliation", () => {
   let client: Awaited<ReturnType<typeof connectArchiveTabDaemonClient>>;
   let tempRepo: { path: string; cleanup: () => Promise<void> };
 
-  test.describe.configure({ timeout: 120_000 });
+  test.describe.configure({ timeout: 300_000 });
 
   test.beforeAll(async () => {
     tempRepo = await createTempGitRepo("archive-tab-");