⚡ [performance improvement] Use non-blocking file reads in host agy daemon

scripts/host_agy_daemon.py

@@ -23,6 +23,14 @@ def get_last_conversation_id():
         pass
     return None
 
+def read_file_sync(path):
+    """Synchronously read and return content from a file, returning empty string on error."""
+    try:
+        with open(path, "r", encoding="utf-8", errors="replace") as f:
+            return f.read().strip()
+    except Exception:
+        return "" 
+
 class AgyDaemonHandler(BaseHTTPRequestHandler):
     """HTTP request handler for agy execution requests."""
     def do_POST(self):
@@ -180,18 +188,12 @@ async def run():
                 except Exception:
                     returncode = -1
 
-                # Read output from the temporary files
-                try:
-                    with open(stdout_path, "r", encoding="utf-8", errors="replace") as f:
-                        stdout = f.read().strip()
-                except Exception:
-                    stdout = ""
-
-                try:
-                    with open(stderr_path, "r", encoding="utf-8", errors="replace") as f:
-                        stderr = f.read().strip()
-                except Exception:
-                    stderr = ""
+                # Read output from the temporary files without blocking the event loop concurrently
+                loop_ref = asyncio.get_running_loop()
+                stdout, stderr = await asyncio.gather(
+                    loop_ref.run_in_executor(None, read_file_sync, stdout_path),
+                    loop_ref.run_in_executor(None, read_file_sync, stderr_path),
+                )
 
                 # Clean up temporary files
                 for path in [stdout_path, stderr_path]: