fix: update computer_use_runtime to 'none' for improved configuration flexibility

Author: Soulter

astrbot/core/config/default.py

@@ -129,7 +129,7 @@
         "proactive_capability": {
             "add_cron_tools": True,
         },
-        "computer_use_runtime": "local",
+        "computer_use_runtime": "none",
         "computer_use_require_admin": True,
         "sandbox": {
             "booter": "shipyard",