In various client fixtures, a player ID check has been added to ensure that the player ID parameter is not None before creating the client object. This check helps to handle scenarios where the player ID is not provided, preventing potential errors or undesired behavior.
In the `test_build` function, added support for the TEST_BUILD environment variable. Now, if the variable is set to True, the `test_build` function will run; otherwise, it will skip the test and output a related message. Additionally, introduced a new pytest fixture `if_test_build` to check if the test is enabled.
Added a `cookies` property accessor to the `BaseClient` class, which retrieves cookies from the `httpx` AsyncClient object and returns a `simnet.client.cookies.Cookies` object (which is a custom implementation of the `httpx.Cookies` class). Additionally, the initialization function was refactored to better support using cookies. Now, if `account_id` is not passed in, it will be retrieved from the cookies.
