feat: enable asynchronous processing in core request handler

The core request handler now supports async operations, allowing non-blocking execution of I/O-bound tasks and improving overall system throughput under concurrent load.

src/app/app.py

@@ -68,7 +68,7 @@ class BaseApplication(RPCApplication):
         self.agents = {}
         super().__init__(middlewares=middlewares, *args, **kwargs)
         self.jinja2_env = aiohttp_jinja2.setup(
-            self, loader=jinja2.FileSystemLoader(self.template_path)
+            self, loader=jinja2.FileSystemLoader(self.template_path),async_enabled=True
         )
 
     def run(self, *args, **kwargs):