SpawnProtection

### Fixed

• Fixed FireListener not respecting the protection configuration in some cases.
• Fixed fire spread and block burning being cancelled even when the related protection setting was disabled.
• Fixed admin bypass not being respected properly for some fire-related events.
• Fixed FLINT_AND_STEEL being partially allowed in protected areas.
• Fixed a case where players outside the protected radius could ignite fire inside the protected area by clicking protected border blocks.
• Fixed fire-starting item checks by validating:
• the player location
• the clicked block location
• the target fire location
• Fixed radius preview being visually misleading when check-y-axis: true. ### Improved
• Improved FireListener consistency with the rest of the protection system.
• Improved InteractListener checks for fire-starting items.
• Improved /spawnprotection preview:
• prevents preview with invalid radius values
• stops if the player changes world
• displays three circles in spherical mode to better represent 3D protection
• Improved internal code cleanup by removing unused dead code.