fix: avoid blocking browser init

routes/api_accounts.py

@@ -11,7 +11,7 @@ from crypto_utils import encrypt_password as encrypt_account_password
 from flask import Blueprint, jsonify, request
 from flask_login import current_user, login_required
 from services.accounts_service import load_user_accounts
-from services.browser_manager import init_browser_manager
+from services.browser_manager import init_browser_manager_async
 from services.browse_types import BROWSE_TYPE_SHOULD_READ, normalize_browse_type, validate_browse_type
 from services.client_log import log_to_client
 from services.models import Account
@@ -230,9 +230,9 @@ def start_account(account_id):
     if not browse_type:
         return jsonify({"error": "浏览类型无效"}), 400
     enable_screenshot = data.get("enable_screenshot", True)
-
-    if not init_browser_manager():
-        return jsonify({"error": "浏览器初始化失败"}), 500
+    if enable_screenshot:
+        # 异步初始化浏览器环境，避免首次下载/安装 Chromium 阻塞请求导致“网页无响应”
+        init_browser_manager_async()
 
     ok, message = submit_account_task(
         user_id=user_id,
@@ -308,6 +308,9 @@ def manual_screenshot(account_id):
 
     account.last_browse_type = browse_type
 
+    # 异步初始化浏览器环境，避免首次下载/安装 Chromium 阻塞请求
+    init_browser_manager_async()
+
     threading.Thread(
         target=take_screenshot_for_account,
         args=(user_id, account_id, browse_type, "manual_screenshot"),
@@ -333,6 +336,10 @@ def batch_start_accounts():
     if not account_ids:
         return jsonify({"error": "请选择要启动的账号"}), 400
 
+    if enable_screenshot:
+        # 异步初始化浏览器环境，避免首次下载/安装 Chromium 阻塞请求
+        init_browser_manager_async()
+
     started = []
     failed = []
 
@@ -407,4 +414,3 @@ def batch_stop_accounts():
         _emit("account_update", account.to_dict(), room=f"user_{user_id}")
 
     return jsonify({"success": True, "stopped_count": len(stopped), "stopped": stopped})
-