Consolidate player data, location state, command priorities, and server patches

[NineOfGaming]

Summary

This PR consolidates and supersedes the following existing pull requests:

• Player profile data, dev origin fix, debug enhancements #14
• Location state and helpers #15
• CommandSenderFeature plot commands and internal queue #16
• Server patch detection and actiondump metadata #17

The changes were integrated together, with conflicts and overlapping behavior resolved where necessary.

Included changes

• Add /whois profile parsing and structured player profile/rank data
• Add public player profile and location lookup APIs
• Improve /locate, mode tracking, and confirmed location state
• Add server patch tracking and actiondump patch metadata
• Add an internal priority queue for important commands
• Improve the state debug display and test commands
• Update the public API and README documentation

Differences from the original PRs

• Plot-command support from CommandSenderFeature plot commands and internal queue #16 is intentionally excluded because encouraging its use could conflict with server rules
• Server patch data from Server patch detection and actiondump metadata #17 has been simplified and changed to include a node id suffix for special nodes
• Add actiondump test command
• Additional fixes and consistency improvements were made while integrating the branches
• Add User.getPlotPosition() for retrieving the player's plot-relative position when the development origin is known
• Format position values consistently as x, y, z with one decimal place in the debug display
• Add online-player autocomplete to the locate and whois test commands
• Add User.isOnDiamondFire(); self explanatory