fix: switching source to main fork

scripts/sql/custom/characters/2025_10_XX_fix_playerbot_arena.sql

@@ -0,0 +1,36 @@
+DELETE FROM arena_team_member
+WHERE guid IN (
+    SELECT guid
+    FROM arena_team_member atm
+    JOIN arena_team ate ON atm.arenaTeamId = ate.arenaTeamId
+    JOIN characters c ON c.guid = atm.guid
+    WHERE ate.type = 5
+      AND c.deleteInfos_Account IS NULL
+      AND c.name IN (
+          SELECT p.name
+          FROM playerbots p
+          WHERE p.bot = 1
+      )
+      AND EXISTS (
+          SELECT 1
+          FROM arena_team_member atm2
+          JOIN characters c2 ON atm2.guid = c2.guid
+          WHERE atm2.arenaTeamId = atm.arenaTeamId
+            AND c2.deleteInfos_Account IS NULL
+            AND c2.guid != c.guid
+      )
+);
+
+DELETE atm
+FROM arena_team_member atm
+JOIN characters c ON c.guid = atm.guid
+WHERE atm.guid IN (
+    SELECT guid
+    FROM (
+        SELECT guid, COUNT(*) AS cnt
+        FROM arena_team_member
+        GROUP BY guid
+        HAVING cnt > 1
+    ) dup
+)
+AND c.deleteInfos_Account IS NULL;