Add backup and config versioning annotations with handling logic

[bentahsin]

No description provided.

[Copilot]

Pull request overview

This PR adds backup and configuration versioning capabilities to the configuration library, including three new annotations (@Backup, @ConfigVersion, @OnReload), a BackupHandler utility class, and integrates these features into the core configuration loading logic. Additionally, the PR translates error messages from Turkish to English throughout the codebase.

• Introduces backup functionality with automatic backup on config failures and version migrations
• Adds configuration versioning support to track and upgrade config file versions
• Provides reload hook mechanism via @OnReload annotation for post-reload operations

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
BackupHandler.java	New utility class for creating timestamped config backups
ConfigVersion.java	New annotation to mark config classes with version numbers
OnReload.java	New annotation to mark methods that should run on config reload
Backup.java	New annotation to configure backup behavior (enabled, path, triggers)
ConfigMapper.java	Adds version handling and reload hook execution; translates error messages to English
Configuration.java	Integrates backup and versioning logic into config initialization flow; translates comments and error messages
ItemStackConverter.java	Translates error message from Turkish to English

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