Password change

[dvlpp]

Adds an helper (trait) to simplify the creation of a password change command

[Copilot]

Pull Request Overview

This PR introduces a reusable trait for building password change commands in Sharp. It provides a standardized way for authenticated users to change their own passwords with configurable validation rules, optional password confirmation, and built-in rate limiting protection.

• Adds IsChangePasswordCommandTrait with configurable password change functionality
• Implements rate limiting (3 attempts) with localized error messages
• Updates demo application to use the new trait instead of custom implementation

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/Auth/Password/Command/IsChangePasswordCommandTrait.php	New trait providing password change form fields, validation rules, and rate limiting
tests/Http/Auth/ChangePasswordCommandTraitTest.php	Comprehensive test coverage for all trait features including rate limiting, confirmation, and validation
resources/lang/en/auth.php	English translations for password change command labels and messages
resources/lang/fr/auth.php	French translations for password change command labels and messages
docs/guide/authentication.md	Documentation explaining trait usage with configuration examples
demo/app/Sharp/Profile/ProfileSingleShow.php	Updated to use new command class and modernized array syntax
demo/app/Sharp/Profile/Commands/UpdateProfilePasswordCommand.php	Removed legacy custom implementation
demo/app/Sharp/Profile/Commands/ChangePasswordCommand.php	New demo implementation using the trait

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