refactor: inject Rust acceleration settings

app/adapters/system/rust.py

@@ -1,8 +1,9 @@
+import importlib
 import logging
 from functools import lru_cache
 from typing import List, Optional, Tuple
 
-from app.runtime.config import settings
+from app.application.configuration import get_runtime_settings
 from app.runtime.log import logger, log_settings
 
 try:
@@ -14,6 +15,15 @@ else:
     _import_error = None
 
 
+def _rust_accel_enabled() -> bool:
+    """读取 Rust 开关快照，组合根未装配时回退旧 Settings。"""
+    try:
+        return bool(get_runtime_settings().get("RUST_ACCEL"))
+    except RuntimeError:
+        legacy_settings = importlib.import_module("app.runtime.config").settings
+        return bool(legacy_settings.RUST_ACCEL)
+
+
 def is_available() -> bool:
     """
     判断 Rust 扩展是否可用。
@@ -25,7 +35,7 @@ def is_config_enabled() -> bool:
     """
     判断系统配置是否允许使用 Rust 加速。
     """
-    return bool(settings.RUST_ACCEL)
+    return _rust_accel_enabled()
 
 
 def is_enabled() -> bool: