✨ Added
- Added ` /villageroptimizer clearglow` admin subcommand to remove glow from optimized villagers in loaded chunks.
- Added ` /villageroptimizer glow <on|off>` admin subcommand to enable/disable optimized villager glow at runtime.
- Added two new config-driven auto-optimization modes:
- Auto-optimize when a chunk exceeds a villager population threshold.
- Auto-optimize when a trade hall (radius) reaches a villager population threshold.

Changed
- When enabled, optimized villager glow is now applied for already-optimized villagers in loaded chunks and newly loaded chunks (not only at the moment of optimization).

Fixed
- Fixed “optimized villagers stay glowing after restart” when the outline feature is disabled by clearing glow on startup/chunk-load.