fix(DB/Quest): A Flawless Plan now has correct requirement and phasing (#24091)

data/sql/updates/pending_db_world/rev_1765217977536744600.sql

@@ -0,0 +1,26 @@
+-- PrevQuestID from 12822 to 18221, A Flawless Plan requires Opening the Backdoor, not Know No Fear
+UPDATE `quest_template_addon` SET `PrevQuestID` = 12821 WHERE `ID` = 12823;
+
+-- Remove phase shifts in Garm and Garm's Rise for Know No Fear
+DELETE FROM `spell_area`
+WHERE `Quest_start` = 12822
+  AND `quest_start_status` = 74;
+
+-- Add phase shift in Garm and Garm's Rise after turning in Opening the Backdoor
+DELETE FROM `spell_area` WHERE `Quest_start` = 12821 AND `Spell` = 54635;
+INSERT INTO `spell_area`
+(
+  `Spell`,
+  `Area`,
+  `Quest_start`,
+  `Quest_end`,
+  `Aura_spell`,
+  `Racemask`,
+  `Gender`,
+  `Autocast`,
+  `Quest_start_status`,
+  `Quest_end_status`
+)
+VALUES
+(54635, 4421, 12821, 0, 0, 0, 2, 1, 64, 0),
+(54635, 4461, 12821, 0, 0, 0, 2, 1, 64, 0);