Refactor constants and update HTTP client config

Added type annotations to constants in constants.py and set IS_CN default to True. Updated main.py to use 'flag' instead of 'ip_flag' from API response. Removed 'verify=False' and 'proxy=None' from httpx.AsyncClient initialization in client.py for improved security and clarity.

src/constants.py

@@ -2,13 +2,13 @@
 
 from pathlib import Path
 
-LOG_DIR = Path("logs")
-IS_CN = False
-CONFIG_FILE = Path("config.json")
+LOG_DIR: Path = Path("logs")
+IS_CN: bool = True
+CONFIG_FILE: Path = Path("config.json")
 
 
-STEAM_API_BASE = "https://steam.ikunshare.com/api"
-STEAM_CACHE_CDN_LIST = (
+STEAM_API_BASE: str = "https://steam.ikunshare.com/api"
+STEAM_CACHE_CDN_LIST: list = (
     [
         "http://alibaba.cdn.steampipe.steamcontent.com",
         "http://steampipe.steamcontent.tnkjmec.com",

src/main.py

@@ -26,7 +26,7 @@ class OnekeyApp:
         )
         req.raise_for_status()
         body = req.json()
-        constants.IS_CN = bool(body["ip_flag"])
+        constants.IS_CN = bool(body["flag"])
 
     async def fetch_key(self):
         trans = {

src/network/client.py

@@ -8,7 +8,7 @@ class HttpClient:
     """HTTP客户端封装"""
 
     def __init__(self):
-        self._client = httpx.AsyncClient(verify=False, timeout=60, proxy=None)
+        self._client = httpx.AsyncClient(timeout=60)
 
     async def get(self, url: str, headers: Optional[Dict] = None) -> httpx.Response:
         """GET请求"""
@@ -23,4 +23,3 @@ class HttpClient:
 
     async def __aexit__(self, exc_type, exc_val, exc_tb):
         await self.close()
-