feat(editor): SQL spawn export for AzerothCore/TrinityCore

Private server integration: export creature spawns, patrol waypoints,
and quest definitions as ready-to-import SQL for AzerothCore/TrinityCore.

- creature_template: name, level, health, mana, damage, armor, faction,
  npcflag (questgiver/vendor/flightmaster/innkeeper), displayId, scale
- creature: spawn position, orientation, respawn time, wander distance,
  movement type (stationary/wander/patrol)
- creature_addon + waypoint_data: patrol path waypoints with delays
- quest_template: title, description, completion text, level, XP, money
- All use ON DUPLICATE KEY UPDATE for safe re-imports
- Auto-exported as spawns.sql alongside other assets on zone save
- File > Export Server SQL menu item for standalone export
- Map ID from zone metadata panel used in spawn table

tools/editor/sql_exporter.hpp

@@ -0,0 +1,33 @@
+#pragma once
+
+#include "npc_spawner.hpp"
+#include "quest_editor.hpp"
+#include <string>
+#include <cstdint>
+
+namespace wowee {
+namespace editor {
+
+class SQLExporter {
+public:
+    // Export creature spawns as AzerothCore/TrinityCore SQL
+    static bool exportCreatures(const std::vector<CreatureSpawn>& spawns,
+                                 const std::string& path,
+                                 uint32_t mapId = 9000,
+                                 uint32_t startEntry = 100000);
+
+    // Export quest definitions as AzerothCore quest_template SQL
+    static bool exportQuests(const std::vector<Quest>& quests,
+                              const std::string& path,
+                              uint32_t startEntry = 100000);
+
+    // Export everything to a single SQL file
+    static bool exportAll(const std::vector<CreatureSpawn>& spawns,
+                           const std::vector<Quest>& quests,
+                           const std::string& path,
+                           uint32_t mapId = 9000,
+                           uint32_t startEntry = 100000);
+};
+
+} // namespace editor
+} // namespace wowee