This update introduces a highly requested virtual sale economy system, architectural unifications, performance safety enhancements, and expanded multi-language support.

What is New:

• Virtual Economy (/isf sell slot amount / all): Players can now safely sell customized quantities of stored vanilla items directly from their virtual stock. The command accepts exact amounts or the "all" argument to clear a slot completely. It queries strict raw prices from prices.yml and rejects fallback prices during manual player sales to preserve economy balance.
• Automated Shift & Database Safety: Selling the entire stock of a filter automatically triggers a safe row reorganization (removeAndShift) inside the SQLite tables, keeping slots compact and clean. Transactions process item deductions prior to depositing Vault funds, serving as an bulletproof anti-duplication shield.
• Unified Execution System: Cleaned up command handlers by routing menu visualization, item withdrawals, and physical economy sales through a unified executor. Typing just "/isf" gracefully preserves the original behavior by opening the visual inventory GUI.
• Tokenized Maven Filters: The plugin.yml version tag is now dynamically dynamically captured from the pom.xml main build variables using token filtering (${project.version}). No more manual version tracking across resource files.
• Extended Multi-Language Suite: New native translation matrices compiled for English (messages_en.yml), Spanish (messages_es.yml), and Russian (messages_ru.yml). The core localization engine now boots and populates missing files dynamically upon startup.
• TabCompletion Reinforcements: Smarter tab hints that adapt when the "sell" argument is typed, immediately filtering occupied numeric slots and toggling amount options.

Migration Steps for Server Administrators:

1. Turn OFF your server.
2. Remove the old VirtualFilter.jar from the plugins folder and upload this new build.
3. Delete ONLY the old 'messages_en.yml' and 'messages_pt.yml' files from the 'plugins/VirtualFilter/' directory to allow the engine to regenerate the new localizations keys required by the sell subcommand.
4. Do NOT delete 'config.yml', 'prices.yml' or your '.db' files. Your configurations, pricing rules, and current player inventories are 100% safe and fully compatible.
5. Turn the server back ON.