fix(control): preserve DNS state for group override options

[ayanamists]

What this PR does

When a group overrides health-check options, dae rebuilds a GlobalOption for cloned dialers. That rebuilt option preserved the transport cache namespace at the call site, but it did not preserve runtime state injected into the base option, especially DaeDNS.

As a result, cloned dialers in groups with tcp_check_url, udp_check_dns, check_interval, or check_tolerance overrides could skip DaeDNS.WrapNodeDialer(...) and fall back to the default resolver for node hostnames.

This patch passes the base option into ParseGroupOverrideOption and preserves the runtime fields needed by cloned dialers.

Tests

• go test -tags dae_stub_ebpf ./control -run TestParseGroupOverrideOptionPreservesRuntimeDialerState -count=1
• go test -tags dae_stub_ebpf ./control -count=1

[jschwinger233]

貌似没有大问题，不过我不是特别熟悉 dns 这一部分，其他人有空的话也可以帮忙看一眼。