• Updated to Java 21 and Paper 1.21.11.
  
  
• Updated ItemsAdder and Oraxen integrations.
  
  
• Modernized messages and GUI handling using Adventure components.
  
  
• Reorganized and cleaned up compatibility, GUI, trade, update, and utility code.
  
  
• Consolidated wandering trader and virtual trade systems.
  
  
• Improved database saving, recovery, and persistence safety.
  
  
• Fixed one-time trades not respecting their configuration.
  
  
• Fixed temporary owner lore not being restored correctly.
  
  
• Fixed cancelled-event handling and GUI item retrieval.
  
  
• Improved trade session cleanup when inventories close or players disconnect.
  
  
• Added safer price handling and validation.
  
  
• Improved update checker reliability.
  
  
• Added Maven Wrapper, documentation, and automated regression tests.

Several internal systems were also cleaned up and modernized to make future updates easier and more reliable.

- Category GUI now uses actual database entries, not the whitelist.
- Empty item categories are skipped.
- Category icons are based on a real sample item from that category.
- Category hover now shows:
stack count
total item amount
owner-tagged stacks
unknown-owner stacks
- Item hover now shows Database Owner: <player> or Unknown.
- GUI-only owner lore is stripped before giving/removing items, so the actual stored item is not polluted.
- Navigation is now slot-based, so stored items named Back, Next Page, etc. won’t accidentally trigger navigation.

- Added /wc help to display available WanderingCollector commands.
- Added /wc stats for admins to view plugin and trade configuration stats.
- Added /wc version for admins to check the installed plugin version and latest Spigot version.
- Added tab completion for /wc help, /wc stats, and /wc version.
- Added checkForUpdates to the default config with a short description.
- /wc with no arguments now shows the help menu instead of only returning an error.
- Updated /wc usage text in plugin.yml to include help, stats, and version.
- Bumped plugin.yml version to 4.6.
- Bumped Maven artifact version to 4.6.

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