Update Healer Man server

scripts/balance_lab.py

@@ -41,17 +41,23 @@ def vite_node_command() -> Path:
     return executable
 
 
+def runtime_session_command(source: str, level: int) -> list[str]:
+    return [
+        str(vite_node_command()),
+        "--mode",
+        "balance-lab",
+        str(RUNTIME),
+        "session",
+        "--source",
+        source,
+        "--level",
+        str(level),
+    ]
+
+
 class RuntimeSession:
     def __init__(self, source: str, level: int, workspace: Path) -> None:
-        command = [
-            str(vite_node_command()),
-            str(RUNTIME),
-            "session",
-            "--source",
-            source,
-            "--level",
-            str(level),
-        ]
+        command = runtime_session_command(source, level)
         self.process = subprocess.Popen(
             command,
             cwd=ROOT,