📦 Automate Steam Login Process

Baseurl: https://www.steamwebapi.com/steam/api/steamloginsecure

    💬 **What this endpoint does:**
    - Automates your Steam login process, including for trading, market, and other Steam Community features.
    - With the `steamLoginSecure` cookie, you can use our Trading API and build easy-to-use trading bots, market trackers, and more.

    🛠️ **How to use:**
    There are **two ways to authenticate**:

    1. **Username + Password Login**
       - Send a POST request with your Steam `username` and `password` in the request body.
       - If your account is protected by Steam Guard, include the `code` parameter from your mobile authenticator.

    2. **Refresh Token Login**
       - Instead of username/password, you can provide a `steamrefreshtoken` (JWT).
       - This token is returned after the initial login and allows you to request a fresh `steamLoginSecure` cookie without needing to re-enter credentials.

    🚨 **Important Note:**
    - Do **not** provide both login credentials and `steamrefreshtoken` at the same time.
    - One of the two options must be present, not both.

    🌐 **Additional Info:**
    - The login process is handled securely. No password is stored server-side.
    - This endpoint is ideal for building:
      - Trading bots
      - Market analyzers
      - Automated session checkers

    📦 **Response:**
    - On success, you will receive the following cookies:
      - `steamLoginSecure` – required for authenticated Steam Community actions
      - `sessionid` – required for most web interactions
      - `browserid` – identifies the browser/session
      - `steamrefreshtoken` – reusable token to fetch new `steamLoginSecure` cookies later

    🕒 **Token Lifespan**
    - The `steamrefreshtoken` is typically valid for **up to 6 months**
    - It can be used repeatedly to retrieve new `steamLoginSecure` cookies without logging in again.