chore(config): build the DogStatsD debug-log destination from typed config

Cut the debug-log destination over to the typed SalukiConfiguration model.
DogStatsDDebugLogConfiguration builds from the dogstatsd debug-log slice and
holds a Live view, so the destination reacts to metrics-stats changes through
the live view instead of a string-key watch. run.rs hands it the typed subtree
and mints the live view from the configuration system.

Author: webern

bin/agent-data-plane/src/cli/run.rs

@@ -762,8 +762,9 @@ async fn add_dsd_pipeline_to_blueprint(
         HostEnrichmentConfiguration::from_environment_provider(env_provider.clone()),
     );
     let dsd_debug_log_config = DogStatsDDebugLogConfiguration::from_configuration(
-        config,
+        &saluki.domains.dogstatsd.debug_log,
         PlatformSettings::get_default_dogstatsd_log_file_path(),
+        config_system.live(|c| &c.domains.dogstatsd.debug_log),
     )
     .error_context("Failed to configure DogStatsD debug log destination.")?;
     let dsd_stats_config = DogStatsDStatisticsConfiguration::new();