Fix all build warnings

- vk_utils.hpp: mark unused 'msg' parameter with [[maybe_unused]]
- world_packets.cpp: write exactMatch field to auction list packet
  (was accepted as parameter but never serialized)
- game_screen.cpp: remove unused bagIcons array and unused info variable
- talent_screen.cpp: remove unused nextRank and pMin variables

include/rendering/vk_utils.hpp

@@ -48,7 +48,7 @@ AllocatedBuffer uploadBuffer(VkContext& ctx, const void* data, VkDeviceSize size
     VkBufferUsageFlags usage);
 
 // Check VkResult and log on failure
-inline bool vkCheck(VkResult result, const char* msg) {
+inline bool vkCheck(VkResult result, [[maybe_unused]] const char* msg) {
     if (result != VK_SUCCESS) {
         // Caller should log the message
         return false;

src/game/world_packets.cpp

@@ -4276,6 +4276,7 @@ network::Packet AuctionListItemsPacket::build(
     p.writeUInt32(quality);
     p.writeUInt8(usableOnly);
     p.writeUInt8(0);  // getAll (0 = normal search)
+    p.writeUInt8(exactMatch);
     // Sort columns (0 = none)
     p.writeUInt8(0);
     return p;

src/ui/game_screen.cpp

@@ -3766,7 +3766,6 @@ void GameScreen::renderBagBar(game::GameHandler& gameHandler) {
 
         // Track bag slot screen rects for drop detection
         ImVec2 bagSlotMins[4], bagSlotMaxs[4];
-        VkDescriptorSet bagIcons[4] = {};
 
         // Slots 1-4: Bag slots (leftmost)
         for (int i = 0; i < 4; ++i) {
@@ -3780,8 +3779,6 @@ void GameScreen::renderBagBar(game::GameHandler& gameHandler) {
             if (!bagItem.empty() && bagItem.item.displayInfoId != 0) {
                 bagIcon = inventoryScreen.getItemIcon(bagItem.item.displayInfoId);
             }
-            bagIcons[i] = bagIcon;
-
             // Render the slot as an invisible button so we control all interaction
             ImVec2 cpos = ImGui::GetCursorScreenPos();
             ImGui::InvisibleButton("##bagSlot", ImVec2(slotSize, slotSize));
@@ -7483,7 +7480,6 @@ void GameScreen::renderBankWindow(game::GameHandler& gameHandler) {
         if (slot.empty()) {
             ImGui::Button("##bank", ImVec2(42, 42));
         } else {
-            auto* info = gameHandler.getItemInfo(slot.item.itemId);
             ImVec4 qc = InventoryScreen::getQualityColor(slot.item.quality);
             ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(qc.x * 0.3f, qc.y * 0.3f, qc.z * 0.3f, 0.8f));
             ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(qc.x * 0.5f, qc.y * 0.5f, qc.z * 0.5f, 0.9f));

src/ui/talent_screen.cpp

@@ -202,7 +202,6 @@ void TalentScreen::renderTalent(game::GameHandler& gameHandler,
     auto* assetManager = core::Application::getInstance().getAssetManager();
 
     uint8_t currentRank = gameHandler.getTalentRank(talent.talentId);
-    uint8_t nextRank = currentRank + 1;
 
     // Check if can learn
     bool canLearn = currentRank < talent.maxRank &&
@@ -297,7 +296,6 @@ void TalentScreen::renderTalent(game::GameHandler& gameHandler,
 
     // Rank indicator overlay
     if (talent.maxRank > 1) {
-        ImVec2 pMin = ImGui::GetItemRectMin();
         ImVec2 pMax = ImGui::GetItemRectMax();
         auto* drawList = ImGui::GetWindowDrawList();