Implement actuator module

[chichunwang]

Summary

This PR implements the actuator-related features and prepares them for the active control simulation workflow.

Main changes

• Added actuator implementation
• Updated actuator dynamics and operating limits
• Prepared actuator module for simulation integration

Testing

• Existing tests should be checked
• Actuator behavior should be verified in simulation

Branch

Source branch: enh/actuator
Target branch: develop

[Copilot]

Pull request overview

This PR introduces a new actuator abstraction and concrete actuator implementations (roll, throttle, and thrust vector control) to support active control workflows in RocketPy, replacing the previous standalone TVC/throttle/roll control classes and wiring the new actuators into Rocket and Flight.

Changes:

• Added a new rocketpy.rocket.actuator module (base Actuator + Roll/Throttle/TVC actuators, including rate limiting and first-order dynamics).
• Updated Rocket/Flight to use the new actuator objects and renamed TVC integration to thrust_vector_control.
• Added unit tests for actuators and updated the active-control example notebook accordingly; removed legacy control classes and their print helpers.

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 26 comments.

Show a summary per file

File	Description
tests/unit/rocket/test_actuators.py	Adds unit tests for the new actuator classes and dynamics/validation.
rocketpy/simulation/flight.py	Updates flight dynamics and reset logic to use thrust_vector_control and new actuator interfaces.
rocketpy/rocket/rocket.py	Switches rocket control-component creation to actuator classes; introduces add_thrust_vector_control and updated roll/throttle control creation.
rocketpy/rocket/actuator/actuator.py	Adds the shared actuator base class (range limiting, rate limiting, optional 1st-order dynamics).
rocketpy/rocket/actuator/roll.py	Adds roll actuator implementation built on the new base class.
rocketpy/rocket/actuator/throttle.py	Adds throttle actuator implementation built on the new base class.
rocketpy/rocket/actuator/thrust_vector.py	Adds 1D and 2D thrust-vector actuator implementations.
rocketpy/rocket/actuator/init.py	Exposes actuator types at the package level.
rocketpy/prints/thrust_vector_actuator_prints.py	Adds print helpers for the thrust vector actuator.
rocketpy/prints/throttle_actuator_prints.py	Adds print helpers for the throttle actuator.
rocketpy/prints/roll_actuator_prints.py	Adds print helpers for the roll actuator.
rocketpy/rocket/tvc.py	Removes legacy TVC component (superseded by actuator module).
rocketpy/rocket/throttle_control.py	Removes legacy throttle control component (superseded by actuator module).
rocketpy/rocket/roll_control.py	Removes legacy roll control component (superseded by actuator module).
rocketpy/prints/tvc_prints.py	Removes legacy TVC print helper.
rocketpy/prints/throttle_control_prints.py	Removes legacy throttle control print helper.
rocketpy/prints/roll_control_prints.py	Removes legacy roll control print helper.
docs/examples/halcyon_flight_sim_active_control.ipynb	Updates the active-control example to the new API (add_thrust_vector_control, new actuator behavior/plotting).

Comments suppressed due to low confidence (1)

docs/examples/halcyon_flight_sim_active_control.ipynb:524

• Notebook kernel metadata is environment-specific; other example notebooks use a generic display name (e.g., "RocketPy"). Keeping this consistent reduces noisy diffs.

[zuorenchen]

• Fixed comments from copilot
• Fixed pylint
• Fixed pytests (PR in #9)