初始化项目 v2.0：中国邮政揽收系统自动填单工具

基于 HTTP API + Node.js token bridge 方案，不依赖浏览器自动化。

login_helper.py

@@ -0,0 +1,63 @@
+"""登录助手 — 解析浏览器导出的 cookies JSON，保存为 session.json。"""
+
+from __future__ import annotations
+
+import json
+import os
+import sys
+
+
+def get_session_path() -> str:
+    if getattr(sys, "frozen", False):
+        base = os.path.dirname(sys.executable)
+    else:
+        base = os.path.dirname(os.path.abspath(__file__))
+    return os.path.join(base, "session.json")
+
+
+def parse_json_and_save(json_text: str) -> int:
+    """解析浏览器导出的 cookies JSON 数组，提取目标域名的 cookie 并保存。
+    返回保存的 cookie 数量。
+    """
+    raw = json.loads(json_text)
+    if not isinstance(raw, list):
+        raise ValueError("JSON 必须是数组格式")
+
+    # 过滤目标域名
+    target = "10.4.188.1"
+    cookies = []
+    seen = set()
+    for c in raw:
+        domain = c.get("domain", "")
+        if target not in domain:
+            continue
+        name = c.get("name", "").strip()
+        path = c.get("path", "/")
+        if not name:
+            continue
+        key = (name, domain, path)
+        if key in seen:
+            continue
+        seen.add(key)
+        cookies.append({
+            "name": name,
+            "value": c.get("value", ""),
+            "domain": domain,
+            "path": path,
+        })
+
+    data = {"cookies": cookies, "saved_from": f"https://{target}"}
+    session_path = get_session_path()
+    os.makedirs(os.path.dirname(session_path) or ".", exist_ok=True)
+    with open(session_path, "w", encoding="utf-8") as f:
+        json.dump(data, f, ensure_ascii=False, indent=2)
+    return len(cookies)
+
+
+def load_session_info() -> dict | None:
+    """读取已保存的 session 信息用于 UI 展示。"""
+    try:
+        with open(get_session_path(), "r") as f:
+            return json.load(f)
+    except (FileNotFoundError, json.JSONDecodeError):
+        return None