TypeError: 'DeploymentHandle' object is not callable after upgrading framex-kit to 0.12.b1

[touale]

After upgrading framex-kit to version 0.12.b1, an exception occurs during plugin startup.
The issue happens when PersonMatchPlugin calls register_proxy_func in on_start().

The error did not occur before the upgrade.

Environment

• framex-kit: 0.12.b1
• Python: 3.11
• Ray Serve (used by framex)

The plugin crashes with the following error:

(ServeController pid=47923) INFO 2026-02-09 09:50:51,556 controller 47923 -- Adding 1 replica to Deployment(name='backend', app='default').
(ServeReplica:default:proxy.ProxyPlugin pid=48191) 02-09 09:50:53 [WARNING] framex.plugin | Plugin(proxy) config not found, use default config
(ServeReplica:default:match.PersonMatchPlugin pid=48196) Task exception was never retrieved
(ServeReplica:default:match.PersonMatchPlugin pid=48196) future: <Task finished name='Task-8' coro=<PersonMatchPlugin.on_start() done, defined at ...> exception=TypeError("'DeploymentHandle' object is not callable")>
Traceback (most recent call last):
  File ".../person_match/plugins/match/__init__.py", line 38, in on_start
    await register_proxy_func(get_teacher_id_filter)
  File ".../framex/plugin/load.py", line 57, in register_proxy_func
    await call_plugin_api(
  File ".../framex/plugin/__init__.py", line 116, in call_plugin_api
    result = await get_adapter().call_func(api, **kwargs)
  File ".../framex/adapter/base.py", line 38, in call_func
    return self._call(func, **kwargs)
  File ".../framex/adapter/base.py", line 67, in _call
    return func(**kwargs)
TypeError: 'DeploymentHandle' object is not callable

[touale]

Previously, DeploymentHandle was explicitly treated as an async callable:

if inspect.iscoroutinefunction(func) or isinstance(func, DeploymentHandle):
    return await self._acall(func, **kwargs)

In 0.12.b1, the DeploymentHandle check was removed, so it now falls back to _call, which causes:

TypeError: 'DeploymentHandle' object is not callable

DeploymentHandle should always be handled via acall.