feat: 为出站请求统一接入 HTTP 代理

app/trading/worker/client.py

@@ -16,7 +16,9 @@ from typing import Any
 
 import httpx
 
+from app.shared.config import Settings
 from app.shared.errors import AppError
+from app.shared.proxy import httpx_client_options
 from app.shared.task_state import OrderState, TaskStatus
 from app.trading.worker.models import LeaseTask
 
@@ -29,13 +31,16 @@ class GatewayClient:
     一份 AsyncClient 实例贯穿 worker 整个生命周期，连接池由 httpx 管理。
     """
 
-    def __init__(self, base_url: str, bearer_token: str, *, timeout: float = 60.0):
+    def __init__(
+        self, base_url: str, bearer_token: str, *, settings: Settings, timeout: float = 60.0
+    ):
         # 末尾去斜杠，避免 base + "/api/..." 拼出双斜杠
         self._base_url = base_url.rstrip("/")
         self._client = httpx.AsyncClient(
             base_url=self._base_url,
             headers={"Authorization": f"Bearer {bearer_token}"},
             timeout=timeout,
+            **httpx_client_options(settings, target_url=self._base_url),
         )
 
     async def aclose(self) -> None: