fix: prevent browser process leaks and improve robustness

- fix(browser): wrap context lifecycle in try/finally to ensure browser
  closes on exceptions and KeyboardInterrupt (login, sniffer, generator)
- fix(browser): replace time.sleep with Playwright native waits
  (wait_for, wait_for_timeout) for more reliable element interaction
- fix(browser): use parameterized page.evaluate instead of f-string
  JS injection in generator polling
- fix(api): add retry logic in wait_for_completion to survive transient
  network errors
- fix(config): add prepare_profile_dir to copy profile to temp dir,
  preventing Chromium SingletonLock conflicts when tools run concurrently
- fix(sniffer): stream API logs to tempfile instead of unbounded memory
  list to avoid OOM
- fix(api): specify encoding='utf-8' when loading cookies from file

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

hunyuan3dweb/browser/sniffer.py

@@ -6,19 +6,22 @@
 
 import json
 import os
+import shutil
 import sys
+import tempfile
 import time
 from datetime import datetime
 from cloakbrowser import launch_persistent_context
 
-from ..config import get_profile_dir
+from ..config import get_profile_dir, prepare_profile_dir
 
 PROFILE_DIR = str(get_profile_dir())
 API_LOG_FILE = "./api_requests.log.json"
 
 
 def main():
-    logs = []
+    # 使用临时文件缓冲日志，避免长时间嗅探导致内存无限增长
+    log_buffer = tempfile.NamedTemporaryFile(mode="w+", suffix=".jsonl", delete=False, encoding="utf-8")
 
     def log_request(request):
         url = request.url
@@ -37,7 +40,8 @@ def main():
                     entry["body"] = request.post_data
                 except Exception:
                     pass
-            logs.append(entry)
+            log_buffer.write(json.dumps(entry, ensure_ascii=False) + "\n")
+            log_buffer.flush()
             print(f"[REQ] {request.method} {url}")
 
     def log_response(response):
@@ -62,7 +66,8 @@ def main():
                     entry["body_preview"] = text[:500]
             except Exception as e:
                 entry["body_error"] = str(e)
-            logs.append(entry)
+            log_buffer.write(json.dumps(entry, ensure_ascii=False) + "\n")
+            log_buffer.flush()
             print(f"[RES] {response.status} {url}")
 
     if not os.path.exists(PROFILE_DIR):
@@ -70,27 +75,51 @@ def main():
         print("请先运行 hunyuan3dweb-login 完成登录")
         sys.exit(1)
 
-    context = launch_persistent_context(PROFILE_DIR, headless=False)
-    page = context.new_page()
+    profile_dir, temp_dir = prepare_profile_dir()
 
-    page.on("request", log_request)
-    page.on("response", log_response)
+    context = None
+    try:
+        context = launch_persistent_context(profile_dir, headless=False)
+        page = context.new_page()
 
-    print("正在打开腾讯混元3D并捕获 API...")
-    page.goto("https://3d.hunyuan.tencent.com/")
-    time.sleep(3)
+        page.on("request", log_request)
+        page.on("response", log_response)
 
-    # 检查是否已登录
-    login_btn = page.locator("button").filter(has_text="登录").first
-    if login_btn.count() > 0:
-        print("\n警告: 当前未检测到登录状态，API 可能返回未授权")
-    else:
-        print("\n已检测到登录状态，开始捕获 API...")
+        print("正在打开腾讯混元3D并捕获 API...")
+        page.goto("https://3d.hunyuan.tencent.com/")
+        time.sleep(3)
 
-    print("\n你可以手动在浏览器中操作（切换页面、生成3D等）")
-    print("所有 API 请求会实时打印在终端中")
-    print("按 Enter 停止捕获并保存结果...\n")
-    input()
+        # 检查是否已登录
+        login_btn = page.locator("button").filter(has_text="登录").first
+        if login_btn.count() > 0:
+            print("\n警告: 当前未检测到登录状态，API 可能返回未授权")
+        else:
+            print("\n已检测到登录状态，开始捕获 API...")
+
+        print("\n你可以手动在浏览器中操作（切换页面、生成3D等）")
+        print("所有 API 请求会实时打印在终端中")
+        print("按 Enter 停止捕获并保存结果...\n")
+        input()
+    finally:
+        if context is not None:
+            try:
+                context.close()
+            except Exception:
+                pass
+        if temp_dir is not None:
+            try:
+                shutil.rmtree(temp_dir)
+            except Exception:
+                pass
+
+    # 从临时文件读取并保存为 JSON 数组
+    try:
+        log_buffer.flush()
+        log_buffer.seek(0)
+        logs = [json.loads(line) for line in log_buffer if line.strip()]
+    finally:
+        log_buffer.close()
+        os.unlink(log_buffer.name)
 
     # 保存日志
     with open(API_LOG_FILE, "w", encoding="utf-8") as f:
@@ -99,8 +128,6 @@ def main():
     print(f"\n共捕获 {len([l for l in logs if l['type'] == 'request'])} 个请求")
     print(f"结果已保存到: {os.path.abspath(API_LOG_FILE)}")
 
-    context.close()
-
 
 if __name__ == "__main__":
     try: