FRITZ'S RPG: BLACK CROWN 0.2.1 — DURNAN MUSIC TEST

1. Remove every older fritzsrpg JAR.
2. Keep only fritzsrpg-black-crown-0.2.1-durnan-music.jar.
3. Set Options > Music & Sounds > Music to an audible value.
4. In a cheat-enabled test world run:

   /function fritzsrpg:bosses/summon_durnan

Expected music flow:
- Phase I begins with the one-time intro.
- The original battle passage follows.
- A seamless battle loop repeats for fights of any length.
- Phase II keeps the battle loop.
- Phase III stops the current passage and starts the Ashen Rage transition.
- The aggressive loop repeats until the fight ends.
- Durnan's death plays a short victory ending.
- Moving more than roughly 80 blocks away stops the boss music.
- Returning within range starts music matching the current phase.

The tracks use Minecraft's MUSIC volume category.
