1.0.1

[westkevin12]

Description

This PR introduces PlayerVaultsX Modern Edition (v1.0.1-SNAPSHOT).

This is a comprehensive architectural overhaul designed to transform PlayerVaultsX from a standalone server plugin into a Network-Grade Storage Solution.

⚠️ Size Notice: The JAR size has increased from ~1.4MB to ~4.9MB.
Why? We now bundle enterprise-grade drivers (MongoDB, Redis, and a custom S3 implementation) to ensure zero-dependency installation on production networks. We believe this trade-off is essential for stability and ease of deployment.

🏢 Enterprise Storage Engine

• Multi-Driver Support: Implemented a Strategy Pattern storage engine supporting:
  • MySQL / MariaDB (Optimized SQL)
  • MongoDB (New! High-performance document storage)
  • FlatFile (Legacy support)
• Redis Caching & Sync:
  • Added a Redis Caching Layer that sits in front of the DB to minimize expensive reads.
  • Implemented Pub/Sub Synchronization: Instant cross-server updates and locking. Opening a vault on Server A locks it on Server B instantly.

☁️ Cloud Data Safety

• S3 Backups: Built-in automated backups to any S3-compatible provider (AWS, MinIO, DigitalOcean).
• Zero-Dependency Client: We implemented a custom "Tiny S3" client using standard Java HttpURLConnection to keep the jar size manageable (avoiding the 15MB+ AWS SDK).

🎨 Modern UI & Experience

• Visual Vault Selector: Navigate vaults via a paginated GUI (/pv selector) instead of chat commands.
• Custom Icons: Players can assign custom item icons to their vaults (/pv icon).
• Global Search: Instantly find items across all user vaults with /pv search <item>.
• Inspector Mode: Admins can safely audit vaults read-only using /pv <player> <#> -r.
• Migration: Added /pvconvert EnderChest to easily migrate vanilla storage to vaults.

� Core Modernization

• Java 21 Native: Codebase updated to utilize modern Java 21 features.
• Safety First: Completely removed internal sun.misc.Unsafe usage. Item serialization now uses CardboardBox for robust NBT handling.
• Async By Default: All heavy operations (I/O, Network) have been moved to asynchronous threads to prevent main-thread lag.

Architectural Checklist

• Java 21 Verified: I have verified this code runs on Java 21.
• No Unsafe Usage: I have not utilized sun.misc.Unsafe or other internal APIs.
• Adventure API: Text changes use MiniMessage/Adventure, not legacy ChatColor.
• Storage Strategy: I have respected the StorageProvider interface pattern.

Related Issue

Closes #