[Bug]: limit_price optional for LimitOrderRequest

[spaceage64]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

requests.py

In this file, for class LimitOrderRequest, limit_price is set to be an optional attribute (i.e., limit_price (Optional[float]), even though it is required (even though this may seem obvious I have tested this and it really is required). it should be changed to limit_price (float).

Expected Behavior

it should require the attribute limit_price.

SDK Version I encountered this issue in

alpaca-py version: v0.42.1

Steps To Reproduce

1. I cannot share my code because it's customized, but just submit an order using LimitOrderRequest but without the limit_price attribute.
2. You will see something like this:

pydantic_core._pydantic_core.ValidationError: 1 validation error for LimitOrderRequest
  Value error, limit_price is required [type=value_error, input_value={'symbol': 'AAPL', 'qty':...derType.LIMIT: 'limit'>}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.11/v/value_error

3. If you do use limit_price, your order will go through just fine.

Filled out the Steps to Reproduce section?

• I have entered valid steps to reproduce my issue or have attached a minimally reproducible case in code that shows my issue happening; and understand that without this my issue will be flagged as invalid and closed after 30 days.

Anything else?

No response