Paragon tester hunter BiS, mount cast QoL, learn all mounts RBAC, trade cap 11

- mod-paragon: .paragon tester bis hunter (Sanctified Ahn'Kahar Blood Hunter + Windrunner's Heartseeker), bis gems kits, AGI bow vs ranged/gun/crossbow, ranged for spi/hybrid weapons.
- .learn all mounts: RBAC 916 + db_auth migration 2026_05_12_00.sql.
- Cast-time mount spells: allow start/complete while moving; block in combat; interrupt mount cast on combat enter; relax movement prevention for NPCs/units.
- MaxPrimaryTradeSkill default 11 (all WotLK primary professions) in WorldConfig + worldserver.conf.dist.

Co-authored-by: Cursor <cursoragent@cursor.com>

data/sql/updates/db_auth/2026_05_12_00.sql

@@ -0,0 +1,10 @@
+-- DB update 2026_05_03_00 -> 2026_05_12_00
+-- RBAC permission for .learn all mounts (Admin 196, Gamemaster 197).
+DELETE FROM `rbac_permissions` WHERE `id` = 916;
+INSERT INTO `rbac_permissions` (`id`, `name`) VALUES
+(916, 'Command: learn all mounts');
+
+DELETE FROM `rbac_linked_permissions` WHERE `linkedId` = 916;
+INSERT INTO `rbac_linked_permissions` (`id`, `linkedId`) VALUES
+(196, 916),
+(197, 916);