style: satisfy strict-rule budget (ANN201, ANN401, TID251)

BerriAI/litellm CI's ruff strict-rule budget check flagged four new
violations on the conduct shim. Fixes:

- __init__.py: add return type annotation on initialize_guardrail
  (ANN201)
- conduct.py: swap Any → object on __init__(*args, **kwargs) so the
  signature stays permissive without dynamically-typed Any (ANN401)
- conduct.py: drop the now-unused Any import (TID251)

Ruff --select ANN,TID passes locally.

litellm/proxy/guardrails/guardrail_hooks/conduct/__init__.py

@@ -16,7 +16,7 @@ _DEFAULT_TIMEOUT_SECONDS = 8.0
 _DEFAULT_UNREACHABLE_FALLBACK = "fail_closed"
 
 
-def initialize_guardrail(litellm_params: "LitellmParams", guardrail: "Guardrail"):
+def initialize_guardrail(litellm_params: "LitellmParams", guardrail: "Guardrail") -> ConductGuardrail:
     """Initialize the Conduct guardrail from LiteLLM's config block.
 
     Maps LiteLLM's typed guardrail fields onto the Conduct constructor:

litellm/proxy/guardrails/guardrail_hooks/conduct/conduct.py

@@ -13,7 +13,7 @@ Docs:    https://conductai.ai/guard
 
 from __future__ import annotations
 
-from typing import Any, ClassVar
+from typing import ClassVar
 
 from litellm.integrations.custom_guardrail import CustomGuardrail
 from litellm.types.guardrails import GuardrailEventHooks
@@ -75,7 +75,7 @@ class ConductGuardrail(_ParentClass):  # type: ignore[valid-type,misc]
     # configurations — see veria-ai finding on BerriAI/litellm#38143.
     SUPPORTED_EVENT_HOOKS: ClassVar[tuple[GuardrailEventHooks, ...]] = (GuardrailEventHooks.pre_call,)
 
-    def __init__(self, *args: Any, **kwargs: Any) -> None:
+    def __init__(self, *args: object, **kwargs: object) -> None:
         if _IMPORT_ERROR is not None or _BaseConductGuard is None:
             raise ImportError(_IMPORT_ERROR_MESSAGE) from _IMPORT_ERROR
         super().__init__(*args, **kwargs)