Fix NPC_EVILLAND and PR_SANCTUARY mechanics

[MrKeiKun]

Pull Request Prelude

• I have followed proper Hercules code styling.
• I have read and understood the contribution guidelines before making this PR.
• I am aware that this PR may be closed if the above-mentioned criteria are not fulfilled.

Changes Proposed

NPC_EVILLAND:

• Now always hits and ignores devotion redirection.
• Target range corrected from 9 to 7.
• Duration now scales per level instead of a flat 30 seconds.
• AoE fixed at 11x11 for levels 1-9 and 27x27 at level 10.

PR_SANCTUARY:

• Heals [skill_lv+3] times regardless of how many targets are standing on it, rather than the heal count being incorrectly shared with (and halved against) the hit-limit counter.
• Disappears strictly after hitting [skill_lv+3] enemies.
• Removed the legacy +1500ms healing-start delay.

Issues addressed: #1137

Thanks @Playtester for the details