BUG: Fix hard-coded radius value for parachute added mass calculation (#889)

* Fix hard-coded radius value for parachute added mass calculation

Calculate radius from cd_s using a typical hemispherical parachute drag
coefficient (1.4) when radius is not explicitly provided. This fixes
drift distance calculations for smaller parachutes like drogues.

Formula: R = sqrt(cd_s / (Cd * π))

Closes #860

Co-authored-by: Gui-FernandesBR <63590233+Gui-FernandesBR@users.noreply.github.com>

Address code review: improve docstrings and add explicit None defaults

Co-authored-by: Gui-FernandesBR <63590233+Gui-FernandesBR@users.noreply.github.com>

Add CHANGELOG entry for PR #889

Co-authored-by: Gui-FernandesBR <63590233+Gui-FernandesBR@users.noreply.github.com>

Update rocket.add_parachute to use radius=None for consistency

Changed the default radius from 1.5 to None in the add_parachute method
to match the Parachute class behavior. This ensures consistent automatic
radius calculation from cd_s across both APIs.

Co-authored-by: Gui-FernandesBR <63590233+Gui-FernandesBR@users.noreply.github.com>

Refactor Parachute class to remove hard-coded radius value and introduce drag_coefficient parameter for radius estimation

Fix hard-coded radius value for parachute added mass calculation

Calculate radius from cd_s using a typical hemispherical parachute drag
coefficient (1.4) when radius is not explicitly provided. This fixes
drift distance calculations for smaller parachutes like drogues.

Formula: R = sqrt(cd_s / (Cd * π))

Closes #860

Co-authored-by: Gui-FernandesBR <63590233+Gui-FernandesBR@users.noreply.github.com>

Add CHANGELOG entry for PR #889

Co-authored-by: Gui-FernandesBR <63590233+Gui-FernandesBR@users.noreply.github.com>

Refactor Parachute class to remove hard-coded radius value and introduce drag_coefficient parameter for radius estimation

MNT: Extract noise initialization to fix pylint too-many-statements in Parachute.__init__

Co-authored-by: Gui-FernandesBR <63590233+Gui-FernandesBR@users.noreply.github.com>

* Refactor environment method access in controller test for clarity

* fix pylint

* fix comments

* avoid breaking change with drag_coefficient

* reafactors Parachute.__init__ method

* fix tests

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Gui-FernandesBR <63590233+Gui-FernandesBR@users.noreply.github.com>
Co-authored-by: Gui-FernandesBR <guilherme_fernandes@usp.br>

Author: 2 people

CHANGELOG.md

@@ -73,7 +73,7 @@ Attention: The newest changes should be on top -->
 
 - BUG: Restore `Rocket.power_off_drag` and `Rocket.power_on_drag` as `Function` objects while preserving raw inputs in `power_off_drag_input` and `power_on_drag_input` [#941](https://github.com/RocketPy-Team/RocketPy/pull/941)
 - BUG: Add explicit timeouts to ThrustCurve API requests [#935](https://github.com/RocketPy-Team/RocketPy/pull/935)
-- BUG: Migrate Forecasts to UCAR THREDDS [#943](https://github.com/RocketPy-Team/RocketPy/pull/943)
+- BUG: Fix hard-coded radius value for parachute added mass calculation [#889](https://github.com/RocketPy-Team/RocketPy/pull/889)
 - BUG: Fix hard-coded radius value for parachute added mass calculation [#889](https://github.com/RocketPy-Team/RocketPy/pull/889)
 - DOC: Fix documentation build [#908](https://github.com/RocketPy-Team/RocketPy/pull/908)
 - BUG: energy_data plot not working for 3 dof sims [[#906](https://github.com/RocketPy-Team/RocketPy/issues/906)]