[router] improve router logs and request id header (#8415)

sgl-router/tests/api_endpoints_test.rs

@@ -35,6 +35,7 @@ impl TestContext {
             metrics: None,
             log_dir: None,
             log_level: None,
+            request_id_headers: None,
         };
 
         Self::new_with_config(config, worker_configs).await
@@ -953,6 +954,7 @@ mod error_tests {
                 metrics: None,
                 log_dir: None,
                 log_level: None,
+                request_id_headers: None,
             };
 
             let ctx = TestContext::new_with_config(

sgl-router/tests/common/mod.rs

@@ -20,6 +20,7 @@ pub fn create_test_config(worker_urls: Vec<String>) -> RouterConfig {
         metrics: None,
         log_dir: None,
         log_level: None,
+        request_id_headers: None,
     }
 }
 
@@ -40,6 +41,7 @@ pub fn create_test_config_no_workers() -> RouterConfig {
         metrics: None,
         log_dir: None,
         log_level: None,
+        request_id_headers: None,
     }
 }
 

sgl-router/tests/request_formats_test.rs

@@ -46,6 +46,7 @@ impl RequestTestContext {
             metrics: None,
             log_dir: None,
             log_level: None,
+            request_id_headers: None,
         };
 
         let client = Client::builder()

sgl-router/tests/streaming_tests.rs

@@ -50,6 +50,7 @@ impl StreamingTestContext {
             metrics: None,
             log_dir: None,
             log_level: None,
+            request_id_headers: None,
         };
 
         let client = Client::builder()

sgl-router/tests/test_pd_routing.rs

@@ -173,6 +173,7 @@ mod test_pd_routing {
                 metrics: None,
                 log_dir: None,
                 log_level: None,
+                request_id_headers: None,
             };
 
             // Router creation will fail due to health checks, but config should be valid