WatcherBoss | Epic Multi-Phase Boss Fights [1.16.x - 1.21.x]

Changelog: • Fixed monument HP holograms not disappearing after fight end or boss death. • Fixed boss spawn announcements and countdown flow. • Fixed /watcherboss start so the 21-second start now works correctly. • Fixed /watcherboss stop to fully clean the event (boss, monuments, holograms, mobs, effects, tasks). • Fixed /watcherboss reload so it now reloads both config.yml and messages.yml correctly. • Fixed world loading issue (world not found) by adding safer world handling and fallback behavior. • Fixed damage/reward exploit: cancelled hits (like invulnerable boss hits) no longer count for top damage rewards. • Fixed spawnwatcherboss command registration and behavior (now properly spawns boss instantly). • PlaceholderAPI is now optional (softdepend) instead of required. Combat/Mechanic Improvements: • Last monument lifecycle is more stable (proper activate/deactivate/remove behavior). • Pig attack now uses configured values correctly (damage, slow, knockback, explosion power). • Better task cleanup and encounter reset logic to prevent stuck states. Compatibility: • Improved cross-version compatibility for modern Spigot versions. • Target support: 1.16 - 1.21.x (including 1.18, 1.19, 1.20, 1.21). Recommended for latest servers: use current Paper/Spigot 1.21.x builds and modern Java runtime for your server version.