[router] Add rustfmt and set group imports by default (#11732)

sgl-router/benches/request_processing.rs

@@ -1,14 +1,18 @@
-use criterion::{black_box, criterion_group, criterion_main, BenchmarkId, Criterion, Throughput};
-use serde_json::{from_str, to_string, to_value, to_vec};
 use std::time::Instant;
 
-use sglang_router_rs::core::{BasicWorker, BasicWorkerBuilder, Worker, WorkerType};
-use sglang_router_rs::protocols::chat::{ChatCompletionRequest, ChatMessage, UserMessageContent};
-use sglang_router_rs::protocols::common::StringOrArray;
-use sglang_router_rs::protocols::completion::CompletionRequest;
-use sglang_router_rs::protocols::generate::GenerateRequest;
-use sglang_router_rs::protocols::sampling_params::SamplingParams;
-use sglang_router_rs::routers::http::pd_types::{generate_room_id, RequestWithBootstrap};
+use criterion::{black_box, criterion_group, criterion_main, BenchmarkId, Criterion, Throughput};
+use serde_json::{from_str, to_string, to_value, to_vec};
+use sglang_router_rs::{
+    core::{BasicWorker, BasicWorkerBuilder, Worker, WorkerType},
+    protocols::{
+        chat::{ChatCompletionRequest, ChatMessage, UserMessageContent},
+        common::StringOrArray,
+        completion::CompletionRequest,
+        generate::GenerateRequest,
+        sampling_params::SamplingParams,
+    },
+    routers::http::pd_types::{generate_room_id, RequestWithBootstrap},
+};
 
 fn create_test_worker() -> BasicWorker {
     BasicWorkerBuilder::new("http://test-server:8000")

sgl-router/benches/tokenizer_benchmark.rs

@@ -1,16 +1,21 @@
 //! Comprehensive tokenizer benchmark with clean summary output
 //! Each test adds a row to the final summary table
 
+use std::{
+    collections::BTreeMap,
+    path::PathBuf,
+    sync::{
+        atomic::{AtomicBool, AtomicU64, Ordering},
+        Arc, Mutex, OnceLock,
+    },
+    thread,
+    time::{Duration, Instant},
+};
+
 use criterion::{black_box, criterion_group, BenchmarkId, Criterion, Throughput};
 use sglang_router_rs::tokenizer::{
     huggingface::HuggingFaceTokenizer, sequence::Sequence, stop::*, stream::DecodeStream, traits::*,
 };
-use std::collections::BTreeMap;
-use std::path::PathBuf;
-use std::sync::atomic::{AtomicBool, AtomicU64, Ordering};
-use std::sync::{Arc, Mutex, OnceLock};
-use std::thread;
-use std::time::{Duration, Instant};
 
 // Include the common test utilities
 #[path = "../tests/common/mod.rs"]

sgl-router/benches/tool_parser_benchmark.rs

@@ -7,15 +7,22 @@
 //! - Streaming vs complete parsing
 //! - Different model formats (JSON, Mistral, Qwen, Pythonic, etc.)
 
+use std::{
+    collections::BTreeMap,
+    sync::{
+        atomic::{AtomicBool, AtomicU64, Ordering},
+        Arc, Mutex,
+    },
+    thread,
+    time::{Duration, Instant},
+};
+
 use criterion::{black_box, criterion_group, BenchmarkId, Criterion, Throughput};
 use serde_json::json;
-use sglang_router_rs::protocols::common::{Function, Tool};
-use sglang_router_rs::tool_parser::{JsonParser, ParserFactory as ToolParserFactory, ToolParser};
-use std::collections::BTreeMap;
-use std::sync::atomic::{AtomicBool, AtomicU64, Ordering};
-use std::sync::{Arc, Mutex};
-use std::thread;
-use std::time::{Duration, Instant};
+use sglang_router_rs::{
+    protocols::common::{Function, Tool},
+    tool_parser::{JsonParser, ParserFactory as ToolParserFactory, ToolParser},
+};
 use tokio::runtime::Runtime;
 
 // Test data for different parser formats - realistic complex examples