v1.6 - Overhaul & Data Safety Update

🎁 New Features

More Accurate Extra Inventory Slots
- Rank #1-2: Now get 54 slots (was 30/27) - Full double chest!
- Rank #3-10: New progressive formula gives 15-50 slots (was 3-24)
- Top ranks now have significantly more storage space
Rank Stealing Toggle (NEW Config Option)
- Added gameplay.keep-ranks option in config. yml
- Set to true to disable rank stealing on death
- Defaults to false (rank stealing enabled as before)
- Allows for different server playstyles
Automatic Database Migration System
- New DatabaseMigrator.java handles format upgrades automatically
- Safely migrates old inventory data to new format
- Tracks migration status to prevent duplicate migrations
- No manual action required - happens automatically on first startup

Dynamic Inventory Resizing
- Extra inventories now automatically resize when rank changes
- Items preserved during resize - excess items drop naturally
- Better handling of inventory size calculations
- Fixes issues with rank changes while inventory is open
Better Access Control
- New hasExtraInventoryAccess(rank) method for cleaner code
- New getSlotsForRank(rank) centralizes slot calculation
- More consistent access checking throughout plugin
- Easier to maintain and modify in future updates
Improved Inventory Management
- Better handling of inventory state during rank changes
- More robust item preservation logic
- Proper cleanup when losing inventory access
- Fixed edge cases with inventory opening/closing

Rank	v1.5 Slots	v1.6 Slots	Change
#1	30 slots	54 slots	+24 slots
#2	27 slots	54 slots	+27 slots
#3	24 slots	50 slots	+26 slots
#4	21 slots	45 slots	+24 slots
#5	18 slots	40 slots	+22 slots
#6	15 slots	35 slots	+20 slots
#7	12 slots	30 slots	+18 slots
#8	9 slots	25 slots	+16 slots
#9	6 slots	20 slots	+14 slots
#10	3 slots	15 slots	+12 slots

gameplay:
  keep-ranks: false  # NEW - Set to true to disable rank stealing