added eco system

- Added /bal View your or another players's balance

- Added /baltop View the top 10 richest players.

- Added /eco <give|take|set|reset> <player> <amount>

- Added /pay <player> <amount> Pay another player

- Added /paytoggle Toggle weather you can receive payments.

fixed issue with replys not working

New Features:

- Private Messaging System
- Added /message <player> <message> and alias /msg for direct player-to-player messaging.
- Added /reply <message> to quickly reply to the last player who messaged you.
- Added /msgtoggle command to toggle receiving private messages.

Mail System:

- Added /mail command with subcommands:
- send <player> <message> — send mail to online or offline players.
- read — read received mail messages.
- clear — clear all your mail.
- Mail messages are stored persistently in an SQLite database.

Social Spy Feature:

• Added /socialspy on|off to toggle social spy for staff.
• Permission-based and intended for moderation.

Improvements:

• Refactored messaging system into MessageManager and DatabaseHandler classes.
• Modular SQLite backend with future extensibility in mind.
• Improved command permissions using dcessentials.<command> namespace.
• Added detailed permission and usage messages.

Bug Fixes:

• Fixed minor bugs in message handling and command parsing.
• Improved input validation and error handling.