Add Unity first-person CharacterController player script for fruit collection game

[noma-studio]

Motivation

• Provide a simple first-person controller for the fruit collection game that supports WASD movement, mouse camera look, and gravity using Unity's CharacterController.
• Offer a ready-to-use player script that can be attached to a player GameObject and wired to a camera for FPS-style controls.

Description

• Added Assets/Scripts/FruitCollectorPlayerController.cs which implements movement, gravity, and mouse look in a single component.
• Uses [RequireComponent(typeof(CharacterController))] and default moveSpeed of 5f and gravity -9.81f for natural motion.
• Implements yaw on the player transform and clamped pitch on the playerCamera, auto-finding Camera.main if playerCamera is not assigned, and locks/hides the cursor on start.
• Handles grounded state with a small negative vertical velocity reset and applies vertical velocity to CharacterController.Move each frame.

Testing

• Verified the created file contents with nl -ba Assets/Scripts/FruitCollectorPlayerController.cs, which displayed the new script successfully.
• Committed the new file and confirmed repository state with git status --short, with the commit operation succeeding.
• No Unity editor or runtime tests were executed in this environment.

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Codex Task