test(logging): add cross-stage requestId correlation integration test in slow bucket

Verifies that a single requestId propagates across at least 3 lifecycle
stages emitted from different modules, and that ALS context survives across
async boundaries (setImmediate, microtask, promise.then). Registered in
test:slow bucket per validate:ci-parity gate.

Refs #1141, #1138

scripts/run-test-bucket.js

@@ -20,6 +20,7 @@ const candidateRoots = ['tests/unit', 'tests/integration', 'tests/npm'];
 // Automated perf-budget enforcement tracked in issue #1071.
 const slowTests = [
   'tests/integration/cursor-daemon-lifecycle.test.ts',
+  'tests/integration/logging-request-context.test.ts',
   'tests/integration/proxy/daemon-lifecycle.test.ts',
   'tests/unit/commands/persist-command-handler.test.ts',
   'tests/unit/hooks/browser-mcp-advanced-interactions.test.ts',