Fixing global mapper coordinates

[MorquinDevlar]

Mapper System Updates: Global Zone Offsets and Caching

Changes

• Added global zone offset tracking with thread-safe operations
• Implemented zone-based canonical map caching
• Added room-to-mapper lookup cache
• Added force refresh capability for map rebuilding
• Added error checking and logging in GetMapper
• Added validation for zone root rooms
• Pre-allocated maps and slices
• Added deterministic exit processing
• Separated mapper functionality into components
• Added experimental features section

Technical Details

New global variables for zone offset tracking:

globalZoneOffsets      = make(map[string]positionDelta)
globalZoneOffsetsMutex = &sync.Mutex{}
offsetsProcessedOrQueued = make(map[string]bool)

Modified:

• GetMapper: Uses canonical zone-based caching
• CalculateGlobalOffsets: New function for world coordinates
• PreCacheMaps: Includes global offset calculation
• GetCoordinates: Uses global zone offsets

[Volte6]

This is addressed in this PR: #372