Development/resolve test failures

[smanes0213]

• Increase RPC socket close timeout from 1s to 5s for graceful shutdown
• Increase CTest timeout from 1500s to 3600s (60 min)
• Add 500ms SetUp() sleep between tests to allow socket draining

Fixes cascading failures when tests take 2-3s with async operations.

The root cause: when tests like TestEvents take 2-3s waiting for async
notifications, the RPC socket is still draining. Next test's Register() call
hits the internal RPC timeout (2-6s) before socket is ready, causing ERROR_TIMEOUT
(error code 2147483659) and subsequent test failures.

This allows the test suite to gracefully handle slow CI without affecting
developers testing on fast machines.