docs(providers): improve TeleopsStatusProvider __init__ docstring

[chongru1988]

I noticed that the TeleopsStatusProvider.__init__ method had a type mismatch in its docstring. The api_key parameter was documented as str, but the actual code uses Optional[str] = None.

I've updated the docstring to:

• Fix the type annotation for api_key parameter (changed from str to Optional[str])
• Add more detailed initialization description explaining the setup of API authentication and base URL
• Document the ThreadPoolExecutor initialization for asynchronous status sharing operations

This should make it clearer for developers using the TeleopsStatusProvider class! Hope this helps!