[router][grpc] Support streaming for v1/chat/completions (#11179)

sgl-router/src/tool_parser/parsers/qwen_parser.rs

@@ -88,16 +88,7 @@ impl QwenParser {
             let arguments = serde_json::to_string(args)
                 .map_err(|e| ToolParserError::ParsingFailed(e.to_string()))?;
 
-            // Generate unique ID
-            let id = obj
-                .get("id")
-                .and_then(|v| v.as_str())
-                .map(String::from)
-                .unwrap_or_else(|| format!("qwen_call_{}", uuid::Uuid::new_v4()));
-
             Ok(Some(ToolCall {
-                id,
-                r#type: "function".to_string(),
                 function: FunctionCall {
                     name: name.to_string(),
                     arguments,
@@ -255,4 +246,8 @@ impl ToolParser for QwenParser {
     fn detect_format(&self, text: &str) -> bool {
         self.has_tool_markers(text)
     }
+
+    fn get_unstreamed_tool_args(&self) -> Option<Vec<crate::tool_parser::types::ToolCallItem>> {
+        helpers::get_unstreamed_args(&self.prev_tool_call_arr, &self.streamed_args_for_tool)
+    }
 }