fix(Scripts/EasternKingdoms): Add quest requirement to Orbaz Bloodbane's Ebon Hold portal (#22443)

Co-authored-by: Kitzunu <24550914+Kitzunu@users.noreply.github.com>

data/sql/updates/pending_db_world/rev_1752005768889461176.sql

@@ -0,0 +1,4 @@
+--
+DELETE FROM `spell_script_names` WHERE `spell_id` = 53099 AND `ScriptName` = 'spell_portal_effect_acherus';
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES(53099, 'spell_portal_effect_acherus');
+DELETE FROM `spell_scripts` WHERE `id`=53099 AND `effIndex`=0;

src/server/scripts/EasternKingdoms/ScarletEnclave/chapter2.cpp

@@ -1027,6 +1027,44 @@ class spell_chapter2_persuasive_strike : public SpellScript
     }
 };
 
+enum AcherusPortal
+{
+    SPELL_PORTAL_EFFECT_ACHERUS   = 53098,
+    QUEST_SCARLET_ARMIES_APPROACH = 12757
+};
+
+class spell_portal_effect_acherus : public SpellScript
+{
+    PrepareSpellScript(spell_portal_effect_acherus);
+
+    bool Validate(SpellInfo const* /*spellInfo*/) override
+    {
+        return ValidateSpellInfo({ SPELL_PORTAL_EFFECT_ACHERUS });
+    }
+
+    SpellCastResult CheckCast()
+    {
+        Unit* target = GetExplTargetUnit();
+        if (target && target->IsPlayer() && target->ToPlayer()->HasQuest(QUEST_SCARLET_ARMIES_APPROACH))
+            return SPELL_CAST_OK;
+
+        return SPELL_FAILED_DONT_REPORT;
+    }
+
+    void HandleScriptEffect(SpellEffIndex /*effIndex*/)
+    {
+        if (Unit* caster = GetCaster())
+            if (Player* player = GetHitPlayer())
+                caster->CastSpell(player, GetEffectValue(), true);
+    }
+
+    void Register() override
+    {
+        OnCheckCast += SpellCheckCastFn(spell_portal_effect_acherus::CheckCast);
+        OnEffectHitTarget += SpellEffectFn(spell_portal_effect_acherus::HandleScriptEffect, EFFECT_0, SPELL_EFFECT_SCRIPT_EFFECT);
+    }
+};
+
 void AddSC_the_scarlet_enclave_c2()
 {
     new npc_scarlet_courier();
@@ -1035,4 +1073,5 @@ void AddSC_the_scarlet_enclave_c2()
     new npc_acherus_necromancer();
     new npc_gothik_the_harvester();
     RegisterSpellScript(spell_chapter2_persuasive_strike);
+    RegisterSpellScript(spell_portal_effect_acherus);
 }