Add auto loot setting to gameplay settings

Checkbox in Settings > Gameplay > Loot section. When enabled, all items
are automatically sent CMSG_AUTOSTORE_LOOT_ITEM on loot response (same
as right-click looting each item). Gold always auto-loots regardless.
Setting persists in settings.cfg as auto_loot=0/1.

include/game/game_handler.hpp

@@ -660,6 +660,8 @@ public:
     void activateSpiritHealer(uint64_t npcGuid);
     bool isLootWindowOpen() const { return lootWindowOpen; }
     const LootResponseData& getCurrentLoot() const { return currentLoot; }
+    void setAutoLoot(bool enabled) { autoLoot_ = enabled; }
+    bool isAutoLoot() const { return autoLoot_; }
 
     // NPC Gossip
     void interactWithNpc(uint64_t guid);
@@ -1354,6 +1356,7 @@ private:
 
     // ---- Phase 5: Loot ----
     bool lootWindowOpen = false;
+    bool autoLoot_ = false;
     LootResponseData currentLoot;
     struct LocalLootState {
         LootResponseData data;

include/ui/game_screen.hpp

@@ -97,6 +97,7 @@ private:
     bool pendingMinimapRotate = false;
     bool pendingMinimapSquare = false;
     bool pendingSeparateBags = true;
+    bool pendingAutoLoot = false;
     bool pendingUseOriginalSoundtrack = true;
 
     // UI element transparency (0.0 = fully transparent, 1.0 = fully opaque)

src/game/game_handler.cpp

@@ -8190,6 +8190,14 @@ void GameHandler::handleLootResponse(network::Packet& packet) {
             currentLoot.gold = 0;
         }
     }
+
+    // Auto-loot items when enabled
+    if (autoLoot_ && state == WorldState::IN_WORLD && socket) {
+        for (const auto& item : currentLoot.items) {
+            auto pkt = AutostoreLootItemPacket::build(item.slotIndex);
+            socket->send(pkt);
+        }
+    }
 }
 
 void GameHandler::handleLootReleaseResponse(network::Packet& packet) {

src/ui/game_screen.cpp

@@ -216,6 +216,9 @@ void GameScreen::render(game::GameHandler& gameHandler) {
         }
     }
 
+    // Apply auto-loot setting to GameHandler every frame (cheap bool sync)
+    gameHandler.setAutoLoot(pendingAutoLoot);
+
     // Sync chat auto-join settings to GameHandler
     gameHandler.chatAutoJoin.general = chatAutoJoinGeneral_;
     gameHandler.chatAutoJoin.trade = chatAutoJoinTrade_;
@@ -5723,6 +5726,15 @@ void GameScreen::renderSettingsWindow() {
                     }
                 }
 
+                ImGui::Spacing();
+                ImGui::Text("Loot");
+                ImGui::Separator();
+                if (ImGui::Checkbox("Auto Loot", &pendingAutoLoot)) {
+                    saveSettings();  // per-frame sync applies pendingAutoLoot to gameHandler
+                }
+                if (ImGui::IsItemHovered())
+                    ImGui::SetTooltip("Automatically pick up all items when looting");
+
                 ImGui::Spacing();
                 ImGui::Text("Bags");
                 ImGui::Separator();
@@ -6304,6 +6316,9 @@ void GameScreen::saveSettings() {
     out << "mount_volume=" << pendingMountVolume << "\n";
     out << "activity_volume=" << pendingActivityVolume << "\n";
 
+    // Gameplay
+    out << "auto_loot=" << (pendingAutoLoot ? 1 : 0) << "\n";
+
     // Controls
     out << "mouse_sensitivity=" << pendingMouseSensitivity << "\n";
     out << "invert_mouse=" << (pendingInvertMouse ? 1 : 0) << "\n";
@@ -6373,6 +6388,8 @@ void GameScreen::loadSettings() {
             else if (key == "npc_voice_volume") pendingNpcVoiceVolume = std::clamp(std::stoi(val), 0, 100);
             else if (key == "mount_volume") pendingMountVolume = std::clamp(std::stoi(val), 0, 100);
             else if (key == "activity_volume") pendingActivityVolume = std::clamp(std::stoi(val), 0, 100);
+            // Gameplay
+            else if (key == "auto_loot") pendingAutoLoot = (std::stoi(val) != 0);
             // Controls
             else if (key == "mouse_sensitivity") pendingMouseSensitivity = std::clamp(std::stof(val), 0.05f, 1.0f);
             else if (key == "invert_mouse") pendingInvertMouse = (std::stoi(val) != 0);