OmniPanel v18.5.304 build notes

Base: v18.5.303 main stability / rules / repair source.
Changed runtime classes:
- Core159Support
- CoreSystems175X
- RuntimeCommandSupport
- CommandCenterCore167
- SourceFixSupport
- WorldRegionStabilitySupport
- OmniPanelPlugin

Changed resources:
- config.yml
- plugin.yml

The latest source remained the base. The old-source folder was not used to replace, revert or downgrade any class. No new patch manager, overlay listener, replacement AntiLag engine, replacement Player Actions system or duplicate region listener was added.

The distributed project is a recovered/decompiled source tree rather than a Maven/Gradle project. Directly compilable repaired classes were rebuilt with Java 21. Existing classes whose recovered Java source contains unrelated decompiler damage were edited in source and their corresponding methods were replaced directly in the current class files, preserving the rest of the latest bytecode.
