chore(application): extract appearance controller and unify UI flow

- Refactor UI application architecture: extracted appearance controller into ui_services.hpp + implementation updates
- Update UI components and managers to use new service layer:
  - `action_bar_panel`, `auth_screen`, `character_screen`, `chat_panel`, `combat_ui`, `dialog_manager`, `game_screen`, `settings_panel`, `social_panel`, `toast_manager`, `ui_manager`, `window_manager`
- Adjust core application entrypoints:
  - application.cpp
- Update component implementations for new controller flow:
  - action_bar_panel.cpp, `chat_panel.cpp`, `combat_ui.cpp`, `dialog_manager.cpp`, `game_screen.cpp`, `settings_panel.cpp`, `social_panel.cpp`, `toast_manager.cpp`, `window_manager.cpp`

These staged changes implement a major architectural refactor for UI/appearance controller separation

include/ui/action_bar_panel.hpp

@@ -4,6 +4,7 @@
 // XP bar, reputation bar, macro resolution.
 // ============================================================
 #pragma once
+#include "ui/ui_services.hpp"
 #include <cstdint>
 #include <unordered_map>
 #include <functional>
@@ -70,7 +71,11 @@ public:
     std::unordered_map<uint32_t, uint32_t> macroPrimarySpellCache_;
     size_t macroCacheSpellCount_ = 0;
 
+    // Section 3.5: UIServices injection (Phase B singleton breaking)
+    void setServices(const UIServices& services) { services_ = services; }
+
 private:
+    UIServices services_;
     uint32_t resolveMacroPrimarySpellId(uint32_t macroId, game::GameHandler& gameHandler);
 };
 

include/ui/auth_screen.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "ui/ui_services.hpp"
 #include "auth/auth_handler.hpp"
 #include <vulkan/vulkan.h>
 #include <string>
@@ -30,6 +31,9 @@ public:
      */
     void setOnSuccess(std::function<void()> callback) { onSuccess = callback; }
 
+    /// Set services (dependency injection)
+    void setServices(const UIServices& services) { services_ = services; }
+
 
     /**
      * Check if authentication is in progress
@@ -44,6 +48,8 @@ public:
     const std::string& getStatusMessage() const { return statusMessage; }
 
 private:
+    UIServices services_;  // Injected service references
+
     struct ServerProfile {
         std::string hostname;
         int port = 3724;

include/ui/character_screen.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "ui/ui_services.hpp"
 #include "game/game_handler.hpp"
 #include <imgui.h>
 #include <string>
@@ -48,6 +49,9 @@ public:
     void setOnBack(std::function<void()> cb) { onBack = std::move(cb); }
     void setOnDeleteCharacter(std::function<void(uint64_t)> cb) { onDeleteCharacter = std::move(cb); }
 
+    /// Set services (dependency injection)
+    void setServices(const UIServices& services) { services_ = services; }
+
     /**
      * Reset selection state (e.g., when switching servers)
      */
@@ -89,6 +93,8 @@ public:
     void selectCharacterByName(const std::string& name);
 
 private:
+    UIServices services_;  // Injected service references
+
     // UI state
     int selectedCharacterIndex = -1;
     bool characterSelected = false;

include/ui/chat_panel.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "game/game_handler.hpp"
+#include "ui/ui_services.hpp"
 #include <vulkan/vulkan.h>
 #include <imgui.h>
 #include <string>
@@ -109,10 +110,16 @@ public:
     /** Reset all chat settings to defaults. */
     void restoreDefaults();
 
+    // Section 3.5: UIServices injection (Phase B singleton breaking)
+    void setServices(const UIServices& services) { services_ = services; }
+
     /** Replace $g/$G and $n/$N gender/name placeholders in quest/chat text. */
     std::string replaceGenderPlaceholders(const std::string& text, game::GameHandler& gameHandler);
 
 private:
+    // Section 3.5: Injected UI services (Phase B singleton breaking)
+    UIServices services_;
+
     // ---- Chat input state ----
     char chatInputBuffer_[512] = "";
     char whisperTargetBuffer_[256] = "";

include/ui/combat_ui.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "ui/ui_services.hpp"
 #include <imgui.h>
 #include <vulkan/vulkan.h>
 #include <string>
@@ -70,6 +71,12 @@ public:
                          SpellbookScreen& spellbookScreen);
     void renderThreatWindow(game::GameHandler& gameHandler);
     void renderBgScoreboard(game::GameHandler& gameHandler);
+
+    // Section 3.5: UIServices injection (Phase B singleton breaking)
+    void setServices(const UIServices& services) { services_ = services; }
+
+private:
+    UIServices services_;
 };
 
 } // namespace ui

include/ui/dialog_manager.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "ui/ui_services.hpp"
 #include <imgui.h>
 #include <string>
 #include <cstdint>
@@ -34,7 +35,12 @@ public:
     /// called in render() after reclaim corpse button
     void renderLateDialogs(game::GameHandler& gameHandler);
 
+    // Section 3.5: UIServices injection (Phase B singleton breaking)
+    void setServices(const UIServices& services) { services_ = services; }
+
 private:
+    // Section 3.5: Injected UI services
+    UIServices services_;
     // Common ImGui window flags for popup dialogs
     static constexpr ImGuiWindowFlags kDialogFlags =
         ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoResize;

include/ui/game_screen.hpp

@@ -17,6 +17,7 @@
 #include "ui/social_panel.hpp"
 #include "ui/action_bar_panel.hpp"
 #include "ui/window_manager.hpp"
+#include "ui/ui_services.hpp"
 #include <vulkan/vulkan.h>
 #include <imgui.h>
 #include <string>
@@ -54,8 +55,13 @@ public:
     // Dependency injection for extracted classes (Phase A singleton breaking)
     void setAppearanceComposer(core::AppearanceComposer* ac) { appearanceComposer_ = ac; }
 
+    // Section 3.5: UIServices injection (Phase B singleton breaking)
+    void setServices(const UIServices& services);
+
 private:
-    // Injected dependencies (replaces getInstance() calls)
+    // Injected UI services (Section 3.5 Phase B - replaces getInstance() calls)
+    UIServices services_;
+    // Legacy pointer for Phase A compatibility (will be removed when all callsites migrate)
     core::AppearanceComposer* appearanceComposer_ = nullptr;
     // Chat panel (extracted from GameScreen — owns all chat state and rendering)
     ChatPanel chatPanel_;

include/ui/settings_panel.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "ui/ui_services.hpp"
 #include <vulkan/vulkan.h>
 #include <string>
 #include <functional>
@@ -149,7 +150,12 @@ public:
     /// Return the platform-specific settings file path
     static std::string getSettingsPath();
 
+    /// Set services (dependency injection)
+    void setServices(const UIServices& services) { services_ = services; }
+
 private:
+    UIServices services_;  // Injected service references
+
     // Keybinding customization (private — only used in Controls tab)
     int pendingRebindAction_ = -1;  // -1 = not rebinding, otherwise action index
     bool awaitingKeyPress_ = false;

include/ui/social_panel.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "ui/ui_services.hpp"
 #include <imgui.h>
 #include <vulkan/vulkan.h>
 #include <string>
@@ -71,6 +72,12 @@ public:
                          ChatPanel& chatPanel);
     void renderInspectWindow(game::GameHandler& gameHandler,
                              InventoryScreen& inventoryScreen);
+
+    // Section 3.5: UIServices injection (Phase B singleton breaking)
+    void setServices(const UIServices& services) { services_ = services; }
+
+private:
+    UIServices services_;
 };
 
 } // namespace ui

include/ui/toast_manager.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "ui/ui_services.hpp"
 #include <vulkan/vulkan.h>
 #include <imgui.h>
 #include <string>
@@ -40,11 +41,17 @@ public:
     /// Fire achievement earned toast + sound
     void triggerAchievementToast(uint32_t achievementId, std::string name = {});
 
+    // Section 3.5: UIServices injection (Phase B singleton breaking)
+    void setServices(const UIServices& services) { services_ = services; }
+
     // --- public state consumed by GameScreen for the golden burst overlay ---
     float levelUpFlashAlpha = 0.0f;
     uint32_t levelUpDisplayLevel = 0;
 
 private:
+    // Section 3.5: Injected UI services
+    UIServices services_;
+
     // ---- Ding effect (own level-up) ----
     static constexpr float DING_DURATION = 4.0f;
     float dingTimer_ = 0.0f;

include/ui/ui_manager.hpp

@@ -5,6 +5,7 @@
 #include "ui/character_create_screen.hpp"
 #include "ui/character_screen.hpp"
 #include "ui/game_screen.hpp"
+#include "ui/ui_services.hpp"
 #include <memory>
 
 // Forward declare SDL_Event
@@ -74,8 +75,18 @@ public:
         if (gameScreen) gameScreen->setAppearanceComposer(ac);
     }
 
+    // Section 3.5: UIServices injection (Phase B singleton breaking)
+    void setServices(const UIServices& services) {
+        services_ = services;
+        if (gameScreen) gameScreen->setServices(services);
+        if (authScreen) authScreen->setServices(services);
+        if (characterScreen) characterScreen->setServices(services);
+    }
+    const UIServices& getServices() const { return services_; }
+
 private:
     core::Window* window = nullptr;
+    UIServices services_;  // Section 3.5: Injected services
 
     // UI Screens
     std::unique_ptr<AuthScreen> authScreen;

include/ui/ui_services.hpp

@@ -0,0 +1,55 @@
+#pragma once
+
+namespace wowee {
+
+// Forward declarations
+namespace core { 
+    class Window;
+    class EntitySpawner;
+    class AppearanceComposer;
+    class WorldLoader;
+}
+namespace rendering { class Renderer; }
+namespace pipeline { class AssetManager; }
+namespace game { 
+    class GameHandler;
+    class ExpansionRegistry;
+}
+namespace addons { class AddonManager; }
+namespace audio { class AudioCoordinator; }
+
+namespace ui {
+
+/**
+ * UI Services - Dependency injection container for UI components.
+ * 
+ * Section 3.5: Break the singleton Phase B
+ * 
+ * Replaces Application::getInstance() calls throughout UI code.
+ * Application creates this struct and injects it into UIManager,
+ * which propagates it to GameScreen and all child UI components.
+ * 
+ * Owned by Application, shared as const pointers (non-owning).
+ */
+struct UIServices {
+    core::Window* window = nullptr;
+    rendering::Renderer* renderer = nullptr;
+    pipeline::AssetManager* assetManager = nullptr;
+    game::GameHandler* gameHandler = nullptr;
+    game::ExpansionRegistry* expansionRegistry = nullptr;
+    addons::AddonManager* addonManager = nullptr;
+    audio::AudioCoordinator* audioCoordinator = nullptr;
+    
+    // Extracted classes (also available individually for Phase A compatibility)
+    core::EntitySpawner* entitySpawner = nullptr;
+    core::AppearanceComposer* appearanceComposer = nullptr;
+    core::WorldLoader* worldLoader = nullptr;
+    
+    // Helper to check if core services are wired
+    bool isValid() const {
+        return window && renderer && assetManager && gameHandler;
+    }
+};
+
+} // namespace ui
+} // namespace wowee

include/ui/window_manager.hpp

@@ -7,6 +7,7 @@
 // equipment sets, skills.
 // ============================================================
 #pragma once
+#include "ui/ui_services.hpp"
 #include <cstdint>
 #include <string>
 #include <unordered_map>
@@ -173,7 +174,11 @@ public:
     std::unordered_map<uint32_t, ExtendedCostEntry> extendedCostCache_;
     bool extendedCostDbLoaded_ = false;
 
+    // Section 3.5: UIServices injection (Phase B singleton breaking)
+    void setServices(const UIServices& services) { services_ = services; }
+
 private:
+    UIServices services_;
     void loadExtendedCostDBC();
     std::string formatExtendedCost(uint32_t extendedCostId, game::GameHandler& gameHandler);
 };

src/core/application.cpp

@@ -39,6 +39,7 @@
 #include "pipeline/wdt_loader.hpp"
 #include "pipeline/dbc_loader.hpp"
 #include "ui/ui_manager.hpp"
+#include "ui/ui_services.hpp"
 #include "auth/auth_handler.hpp"
 #include "game/game_handler.hpp"
 #include "game/transport_manager.hpp"
@@ -227,6 +228,20 @@ bool Application::initialize() {
         // Wire AppearanceComposer to UI components (Phase A singleton breaking)
         if (uiManager) {
             uiManager->setAppearanceComposer(appearanceComposer_.get());
+            
+            // Wire all services to UI components (Phase B singleton breaking)
+            ui::UIServices uiServices;
+            uiServices.window = window.get();
+            uiServices.renderer = renderer.get();
+            uiServices.assetManager = assetManager.get();
+            uiServices.gameHandler = gameHandler.get();
+            uiServices.expansionRegistry = expansionRegistry_.get();
+            uiServices.addonManager = addonManager_.get();  // May be nullptr here, re-wire later
+            uiServices.audioCoordinator = audioCoordinator_.get();
+            uiServices.entitySpawner = entitySpawner_.get();
+            uiServices.appearanceComposer = appearanceComposer_.get();
+            uiServices.worldLoader = worldLoader_.get();
+            uiManager->setServices(uiServices);
         }
 
         // Ensure the main in-world CharacterRenderer can load textures immediately.
@@ -505,6 +520,22 @@ bool Application::initialize() {
             entitySpawner_.get(), appearanceComposer_.get(), window.get(),
             world.get(), addonManager_.get());
 
+        // Re-wire UIServices now that all services (addonManager_, worldLoader_) are available
+        if (uiManager) {
+            ui::UIServices uiServices;
+            uiServices.window = window.get();
+            uiServices.renderer = renderer.get();
+            uiServices.assetManager = assetManager.get();
+            uiServices.gameHandler = gameHandler.get();
+            uiServices.expansionRegistry = expansionRegistry_.get();
+            uiServices.addonManager = addonManager_.get();
+            uiServices.audioCoordinator = audioCoordinator_.get();
+            uiServices.entitySpawner = entitySpawner_.get();
+            uiServices.appearanceComposer = appearanceComposer_.get();
+            uiServices.worldLoader = worldLoader_.get();
+            uiManager->setServices(uiServices);
+        }
+
         // Start background preload for last-played character's world.
         // Warms the file cache so terrain tile loading is faster at Enter World.
         {

src/ui/action_bar_panel.cpp

@@ -172,7 +172,7 @@ void ActionBarPanel::renderActionBar(game::GameHandler& gameHandler,
     ImVec2 displaySize = ImGui::GetIO().DisplaySize;
     float screenW = displaySize.x > 0.0f ? displaySize.x : 1280.0f;
     float screenH = displaySize.y > 0.0f ? displaySize.y : 720.0f;
-    auto* assetMgr = core::Application::getInstance().getAssetManager();
+    auto* assetMgr = services_.assetManager;
 
     float slotSize = 48.0f * settingsPanel.pendingActionBarScale;
     float spacing = 4.0f;
@@ -1107,7 +1107,7 @@ void ActionBarPanel::renderStanceBar(game::GameHandler& gameHandler,
     ImVec2 displaySize = ImGui::GetIO().DisplaySize;
     float screenW = displaySize.x > 0.0f ? displaySize.x : 1280.0f;
     float screenH = displaySize.y > 0.0f ? displaySize.y : 720.0f;
-    auto* assetMgr = core::Application::getInstance().getAssetManager();
+    auto* assetMgr = services_.assetManager;
 
     // Match the action bar slot size so they align neatly
     float slotSize = 38.0f;
@@ -1196,7 +1196,7 @@ void ActionBarPanel::renderBagBar(game::GameHandler& gameHandler,
     ImVec2 displaySize = ImGui::GetIO().DisplaySize;
     float screenW = displaySize.x > 0.0f ? displaySize.x : 1280.0f;
     float screenH = displaySize.y > 0.0f ? displaySize.y : 720.0f;
-    auto* assetMgr = core::Application::getInstance().getAssetManager();
+    auto* assetMgr = services_.assetManager;
 
     float slotSize = 42.0f;
     float spacing = 4.0f;
@@ -1232,7 +1232,7 @@ void ActionBarPanel::renderBagBar(game::GameHandler& gameHandler,
             if (!blpData.empty()) {
                 auto image = pipeline::BLPLoader::load(blpData);
                 if (image.isValid()) {
-                    auto* w = core::Application::getInstance().getWindow();
+                    auto* w = services_.window;
                     auto* vkCtx = w ? w->getVkContext() : nullptr;
                     if (vkCtx)
                         backpackIconTexture_ = vkCtx->uploadImGuiTexture(image.data.data(), image.width, image.height);
@@ -1483,7 +1483,7 @@ void ActionBarPanel::renderXpBar(game::GameHandler& gameHandler,
     ImVec2 displaySize = ImGui::GetIO().DisplaySize;
     float screenW = displaySize.x > 0.0f ? displaySize.x : 1280.0f;
     float screenH = displaySize.y > 0.0f ? displaySize.y : 720.0f;
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     (void)window;  // Not used for positioning; kept for AssetManager if needed
 
     // Position just above both action bars (bar1 at screenH-barH, bar2 above that)

src/ui/chat_panel.cpp

@@ -197,8 +197,8 @@ void ChatPanel::render(game::GameHandler& gameHandler,
                        InventoryScreen& inventoryScreen,
                        SpellbookScreen& spellbookScreen,
                        QuestLogScreen& questLogScreen) {
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
-    auto* assetMgr = core::Application::getInstance().getAssetManager();
+    auto* assetMgr = services_.assetManager;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
     float chatW = std::min(500.0f, screenW * 0.4f);
@@ -1109,7 +1109,7 @@ void ChatPanel::render(game::GameHandler& gameHandler,
             std::string bodyLower = mMsg.message;
             for (auto& c : bodyLower) c = static_cast<char>(std::tolower(static_cast<unsigned char>(c)));
             if (bodyLower.find(selfNameLower) != std::string::npos) {
-                if (auto* renderer = core::Application::getInstance().getRenderer()) {
+                if (auto* renderer = services_.renderer) {
                     if (auto* ui = renderer->getUiSoundManager())
                         ui->playWhisperReceived();
                 }
@@ -2151,7 +2151,7 @@ void ChatPanel::sendChatMessage(game::GameHandler& gameHandler,
             // /run <lua code> — execute Lua script via addon system
             if ((cmdLower == "run" || cmdLower == "script") && spacePos != std::string::npos) {
                 std::string luaCode = command.substr(spacePos + 1);
-                auto* am = core::Application::getInstance().getAddonManager();
+                auto* am = services_.addonManager;
                 if (am) {
                     am->runScript(luaCode);
                 } else {
@@ -2164,7 +2164,7 @@ void ChatPanel::sendChatMessage(game::GameHandler& gameHandler,
             // /dump <expression> — evaluate Lua expression and print result
             if ((cmdLower == "dump" || cmdLower == "print") && spacePos != std::string::npos) {
                 std::string expr = command.substr(spacePos + 1);
-                auto* am = core::Application::getInstance().getAddonManager();
+                auto* am = services_.addonManager;
                 if (am && am->isInitialized()) {
                     // Wrap expression in print(tostring(...)) to display the value
                     std::string wrapped = "local __v = " + expr +
@@ -2187,7 +2187,7 @@ void ChatPanel::sendChatMessage(game::GameHandler& gameHandler,
 
             // Check addon slash commands (SlashCmdList) before built-in commands
             {
-                auto* am = core::Application::getInstance().getAddonManager();
+                auto* am = services_.addonManager;
                 if (am && am->isInitialized()) {
                     std::string slashCmd = "/" + cmdLower;
                     std::string slashArgs;
@@ -2214,7 +2214,7 @@ void ChatPanel::sendChatMessage(game::GameHandler& gameHandler,
 
             // /reload or /reloadui — reload all addons (save variables, re-init Lua, re-scan .toc files)
             if (cmdLower == "reload" || cmdLower == "reloadui" || cmdLower == "rl") {
-                auto* am = core::Application::getInstance().getAddonManager();
+                auto* am = services_.addonManager;
                 if (am) {
                     am->reload();
                     am->fireEvent("VARIABLES_LOADED");
@@ -2301,7 +2301,7 @@ void ChatPanel::sendChatMessage(game::GameHandler& gameHandler,
             if (cmdLower == "loc" || cmdLower == "coords" || cmdLower == "whereami") {
                 const auto& pmi = gameHandler.getMovementInfo();
                 std::string zoneName;
-                if (auto* rend = core::Application::getInstance().getRenderer())
+                if (auto* rend = services_.renderer)
                     zoneName = rend->getCurrentZoneName();
                 char buf[256];
                 snprintf(buf, sizeof(buf), "%.1f, %.1f, %.1f%s%s",
@@ -2327,7 +2327,7 @@ void ChatPanel::sendChatMessage(game::GameHandler& gameHandler,
             // /zone command — print current zone name
             if (cmdLower == "zone") {
                 std::string zoneName;
-                if (auto* rend = core::Application::getInstance().getRenderer())
+                if (auto* rend = services_.renderer)
                     zoneName = rend->getCurrentZoneName();
                 game::MessageChatData sysMsg;
                 sysMsg.type = game::ChatType::SYSTEM;
@@ -4323,7 +4323,7 @@ void ChatPanel::sendChatMessage(game::GameHandler& gameHandler,
                 std::string emoteText = rendering::Renderer::getEmoteText(cmdLower, targetNamePtr);
                 if (!emoteText.empty()) {
                     // Play the emote animation
-                    auto* renderer = core::Application::getInstance().getRenderer();
+                    auto* renderer = services_.renderer;
                     if (renderer) {
                         renderer->playEmote(cmdLower);
                     }
@@ -4697,11 +4697,11 @@ std::string ChatPanel::replaceGenderPlaceholders(const std::string& text, game::
 void ChatPanel::renderBubbles(game::GameHandler& gameHandler) {
     if (chatBubbles_.empty()) return;
 
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
     auto* camera = renderer ? renderer->getCamera() : nullptr;
     if (!camera) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 

src/ui/combat_ui.cpp

@@ -60,7 +60,7 @@ namespace ui {
 void CombatUI::renderCastBar(game::GameHandler& gameHandler, SpellIconFn getSpellIcon) {
     if (!gameHandler.isCasting()) return;
 
-    auto* assetMgr = core::Application::getInstance().getAssetManager();
+    auto* assetMgr = services_.assetManager;
 
     ImVec2 displaySize = ImGui::GetIO().DisplaySize;
     float screenW = displaySize.x > 0.0f ? displaySize.x : 1280.0f;
@@ -187,8 +187,8 @@ void CombatUI::renderCooldownTracker(game::GameHandler& gameHandler,
         return a.remaining > b.remaining;
     });
 
-    auto* assetMgr = core::Application::getInstance().getAssetManager();
+    auto* assetMgr = services_.assetManager;
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -268,7 +268,7 @@ void CombatUI::renderRaidWarningOverlay(game::GameHandler& gameHandler) {
         // Walk only the new messages (deque — iterate from back by skipping old ones)
         size_t toScan = newCount - raidWarnChatSeenCount_;
         size_t startIdx = newCount > toScan ? newCount - toScan : 0;
-        auto* renderer = core::Application::getInstance().getRenderer();
+        auto* renderer = services_.renderer;
         for (size_t i = startIdx; i < newCount; ++i) {
             const auto& msg = chatHistory[i];
             if (msg.type == game::ChatType::RAID_WARNING ||
@@ -361,13 +361,13 @@ void CombatUI::renderCombatText(game::GameHandler& gameHandler) {
     const auto& entries = gameHandler.getCombatText();
     if (entries.empty()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     if (!window) return;
     const float screenW = static_cast<float>(window->getWidth());
     const float screenH = static_cast<float>(window->getHeight());
 
     // Camera for world-space projection
-    auto* appRenderer = core::Application::getInstance().getRenderer();
+    auto* appRenderer = services_.renderer;
     rendering::Camera* camera = appRenderer ? appRenderer->getCamera() : nullptr;
     glm::mat4 viewProj;
     if (camera) viewProj = camera->getProjectionMatrix() * camera->getViewMatrix();
@@ -785,7 +785,7 @@ void CombatUI::renderDPSMeter(game::GameHandler& gameHandler,
     fmtNum(hps, hpsBuf, sizeof(hpsBuf));
 
     // Position: small floating label just above the action bar, right of center
-    auto* appWin = core::Application::getInstance().getWindow();
+    auto* appWin = services_.window;
     float screenW = appWin ? static_cast<float>(appWin->getWidth())  : 1280.0f;
     float screenH = appWin ? static_cast<float>(appWin->getHeight()) : 720.0f;
 
@@ -866,7 +866,7 @@ void CombatUI::renderBuffBar(game::GameHandler& gameHandler,
     }
     if (activeCount == 0 && !gameHandler.hasPet()) return;
 
-    auto* assetMgr = core::Application::getInstance().getAssetManager();
+    auto* assetMgr = services_.assetManager;
 
     // Position below the minimap (minimap: 200x200 at top-right, bottom edge at Y≈210)
     // Anchored to the right side to stay away from party frames on the left
@@ -1201,7 +1201,7 @@ void CombatUI::renderBattlegroundScore(game::GameHandler& gameHandler) {
         if (auto mv = gameHandler.getWorldState(def->maxKey)) maxScore = *mv;
     }
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth())  : 1280.0f;
 
     // Width scales with screen but stays reasonable
@@ -1598,7 +1598,7 @@ void CombatUI::renderCombatLog(game::GameHandler& gameHandler,
             ImGui::TextColored(color, "%s", desc);
             // Hover tooltip: show rich spell info for entries with a known spell
             if (e.spellId != 0 && ImGui::IsItemHovered()) {
-                auto* assetMgrLog = core::Application::getInstance().getAssetManager();
+                auto* assetMgrLog = services_.assetManager;
                 ImGui::BeginTooltip();
                 bool richOk = spellbookScreen.renderSpellInfoTooltip(e.spellId, gameHandler, assetMgrLog);
                 if (!richOk) {

src/ui/dialog_manager.cpp

@@ -69,7 +69,7 @@ void DialogManager::renderLateDialogs(game::GameHandler& gameHandler) {
 void DialogManager::renderGroupInvitePopup(game::GameHandler& gameHandler) {
     if (!gameHandler.hasPendingGroupInvite()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 150, 200), ImGuiCond_Always);
@@ -93,7 +93,7 @@ void DialogManager::renderGroupInvitePopup(game::GameHandler& gameHandler) {
 void DialogManager::renderDuelRequestPopup(game::GameHandler& gameHandler) {
     if (!gameHandler.hasPendingDuelRequest()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 150, 250), ImGuiCond_Always);
@@ -158,7 +158,7 @@ void DialogManager::renderDuelCountdown(game::GameHandler& gameHandler) {
 void DialogManager::renderItemTextWindow(game::GameHandler& gameHandler) {
     if (!gameHandler.isItemTextOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) :  720.0f;
 
@@ -194,7 +194,7 @@ void DialogManager::renderItemTextWindow(game::GameHandler& gameHandler) {
 void DialogManager::renderSharedQuestPopup(game::GameHandler& gameHandler) {
     if (!gameHandler.hasPendingSharedQuest()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 175, 490), ImGuiCond_Always);
@@ -224,7 +224,7 @@ void DialogManager::renderSummonRequestPopup(game::GameHandler& gameHandler) {
     gameHandler.tickSummonTimeout(dt);
     if (!gameHandler.hasPendingSummonRequest()) return;  // expired
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 175, 430), ImGuiCond_Always);
@@ -252,7 +252,7 @@ void DialogManager::renderSummonRequestPopup(game::GameHandler& gameHandler) {
 void DialogManager::renderTradeRequestPopup(game::GameHandler& gameHandler) {
     if (!gameHandler.hasPendingTradeRequest()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 150, 370), ImGuiCond_Always);
@@ -284,7 +284,7 @@ void DialogManager::renderTradeWindow(game::GameHandler& gameHandler,
     const uint64_t peerGold = gameHandler.getPeerTradeGold();
     const auto& peerName = gameHandler.getTradePeerName();
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -443,7 +443,7 @@ void DialogManager::renderLootRollPopup(game::GameHandler& gameHandler,
 
     const auto& roll = gameHandler.getPendingLootRoll();
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 175, 310), ImGuiCond_Always);
@@ -584,7 +584,7 @@ void DialogManager::renderLootRollPopup(game::GameHandler& gameHandler,
 void DialogManager::renderGuildInvitePopup(game::GameHandler& gameHandler) {
     if (!gameHandler.hasPendingGuildInvite()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 175, 250), ImGuiCond_Always);
@@ -610,7 +610,7 @@ void DialogManager::renderGuildInvitePopup(game::GameHandler& gameHandler) {
 void DialogManager::renderReadyCheckPopup(game::GameHandler& gameHandler) {
     if (!gameHandler.hasPendingReadyCheck()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -684,7 +684,7 @@ void DialogManager::renderBgInvitePopup(game::GameHandler& gameHandler) {
         return;
     }
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -745,7 +745,7 @@ void DialogManager::renderBfMgrInvitePopup(game::GameHandler& gameHandler) {
     // Only shown on WotLK servers (outdoor battlefields like Wintergrasp use the BF Manager)
     if (!gameHandler.hasBfMgrInvite()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -802,7 +802,7 @@ void DialogManager::renderLfgProposalPopup(game::GameHandler& gameHandler) {
     using LfgState = game::GameHandler::LfgState;
     if (gameHandler.getLfgState() != LfgState::Proposal) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -851,7 +851,7 @@ void DialogManager::renderLfgRoleCheckPopup(game::GameHandler& gameHandler) {
     using LfgState = game::GameHandler::LfgState;
     if (gameHandler.getLfgState() != LfgState::RoleCheck) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -915,7 +915,7 @@ void DialogManager::renderLfgRoleCheckPopup(game::GameHandler& gameHandler) {
 void DialogManager::renderResurrectDialog(game::GameHandler& gameHandler) {
     if (!gameHandler.showResurrectDialog()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -976,7 +976,7 @@ void DialogManager::renderResurrectDialog(game::GameHandler& gameHandler) {
 void DialogManager::renderTalentWipeConfirmDialog(game::GameHandler& gameHandler) {
     if (!gameHandler.showTalentWipeConfirmDialog()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -1046,7 +1046,7 @@ void DialogManager::renderTalentWipeConfirmDialog(game::GameHandler& gameHandler
 void DialogManager::renderPetUnlearnConfirmDialog(game::GameHandler& gameHandler) {
     if (!gameHandler.showPetUnlearnDialog()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 

src/ui/game_screen.cpp

@@ -250,6 +250,22 @@ GameScreen::GameScreen() {
     loadSettings();
 }
 
+// Section 3.5: Set UI services and propagate to child components
+void GameScreen::setServices(const UIServices& services) {
+    services_ = services;
+    // Update legacy pointer for Phase A compatibility
+    appearanceComposer_ = services.appearanceComposer;
+    // Propagate to child panels
+    chatPanel_.setServices(services);
+    toastManager_.setServices(services);
+    dialogManager_.setServices(services);
+    settingsPanel_.setServices(services);
+    combatUI_.setServices(services);
+    socialPanel_.setServices(services);
+    actionBarPanel_.setServices(services);
+    windowManager_.setServices(services);
+}
+
 void GameScreen::render(game::GameHandler& gameHandler) {
     // Set up chat bubble callback (once) and cache game handler in ChatPanel
     chatPanel_.setupCallbacks(gameHandler);
@@ -269,7 +285,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
             uiErrors_.push_back({msg, 0.0f});
             if (uiErrors_.size() > 5) uiErrors_.erase(uiErrors_.begin());
             // Play error sound for each new error (rate-limited by deque cap of 5)
-            if (auto* r = core::Application::getInstance().getRenderer()) {
+            if (auto* r = services_.renderer) {
                 if (auto* sfx = r->getUiSoundManager()) sfx->playError();
             }
         });
@@ -292,7 +308,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
 
     // Sync minimap opacity with UI opacity
     {
-        auto* renderer = core::Application::getInstance().getRenderer();
+        auto* renderer = services_.renderer;
         if (renderer) {
             if (auto* minimap = renderer->getMinimap()) {
                 minimap->setOpacity(settingsPanel_.uiOpacity_);
@@ -302,7 +318,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
 
     // Apply initial settings when renderer becomes available
     if (!settingsPanel_.minimapSettingsApplied_) {
-        auto* renderer = core::Application::getInstance().getRenderer();
+        auto* renderer = services_.renderer;
         if (renderer) {
             if (auto* minimap = renderer->getMinimap()) {
                 settingsPanel_.minimapRotate_ = false;
@@ -329,7 +345,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
 
     // Apply saved volume settings once when audio managers first become available
     if (!settingsPanel_.volumeSettingsApplied_) {
-        auto* renderer = core::Application::getInstance().getRenderer();
+        auto* renderer = services_.renderer;
         if (renderer && renderer->getUiSoundManager()) {
             settingsPanel_.applyAudioVolumes(renderer);
             settingsPanel_.volumeSettingsApplied_ = true;
@@ -338,7 +354,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
 
     // Apply saved MSAA setting once when renderer is available
     if (!settingsPanel_.msaaSettingsApplied_ && settingsPanel_.pendingAntiAliasing > 0) {
-        auto* renderer = core::Application::getInstance().getRenderer();
+        auto* renderer = services_.renderer;
         if (renderer) {
             static const VkSampleCountFlagBits aaSamples[] = {
                 VK_SAMPLE_COUNT_1_BIT, VK_SAMPLE_COUNT_2_BIT,
@@ -353,7 +369,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
 
     // Apply saved FXAA setting once when renderer is available
     if (!settingsPanel_.fxaaSettingsApplied_) {
-        auto* renderer = core::Application::getInstance().getRenderer();
+        auto* renderer = services_.renderer;
         if (renderer) {
             renderer->setFXAAEnabled(settingsPanel_.pendingFXAA);
             settingsPanel_.fxaaSettingsApplied_ = true;
@@ -362,7 +378,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
 
     // Apply saved water refraction setting once when renderer is available
     if (!settingsPanel_.waterRefractionApplied_) {
-        auto* renderer = core::Application::getInstance().getRenderer();
+        auto* renderer = services_.renderer;
         if (renderer) {
             renderer->setWaterRefractionEnabled(settingsPanel_.pendingWaterRefraction);
             settingsPanel_.waterRefractionApplied_ = true;
@@ -371,7 +387,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
 
     // Apply saved normal mapping / POM settings once when WMO renderer is available
     if (!settingsPanel_.normalMapSettingsApplied_) {
-        auto* renderer = core::Application::getInstance().getRenderer();
+        auto* renderer = services_.renderer;
         if (renderer) {
             if (auto* wr = renderer->getWMORenderer()) {
                 wr->setNormalMappingEnabled(settingsPanel_.pendingNormalMapping);
@@ -391,7 +407,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
 
     // Apply saved upscaling setting once when renderer is available
     if (!settingsPanel_.fsrSettingsApplied_) {
-        auto* renderer = core::Application::getInstance().getRenderer();
+        auto* renderer = services_.renderer;
         if (renderer) {
             static constexpr float fsrScales[] = { 0.77f, 0.67f, 0.59f, 1.00f };
             settingsPanel_.pendingFSRQuality = std::clamp(settingsPanel_.pendingFSRQuality, 0, 3);
@@ -562,7 +578,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
     questLogScreen.render(gameHandler, inventoryScreen);
 
     // Spellbook (P key toggle handled inside)
-    spellbookScreen.render(gameHandler, core::Application::getInstance().getAssetManager());
+    spellbookScreen.render(gameHandler, services_.assetManager);
 
     // Insert spell link into chat if player shift-clicked a spellbook entry
     {
@@ -579,7 +595,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
     {
         uint64_t activeGuid = gameHandler.getActiveCharacterGuid();
         if (activeGuid != 0 && activeGuid != inventoryScreenCharGuid_) {
-            auto* am = core::Application::getInstance().getAssetManager();
+            auto* am = services_.assetManager;
             if (am) {
                 inventoryScreen.setAssetManager(am);
                 const auto* ch = gameHandler.getActiveCharacter();
@@ -635,7 +651,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
         if (appearanceComposer_) appearanceComposer_->loadEquippedWeapons();
         inventoryScreen.markPreviewDirty();
         // Update renderer weapon type for animation selection
-        auto* r = core::Application::getInstance().getRenderer();
+        auto* r = services_.renderer;
         if (r) {
             const auto& mh = gameHandler.getInventory().getEquipSlot(game::EquipSlot::MAIN_HAND);
             r->setEquippedWeaponType(mh.empty() ? 0 : mh.item.inventoryType);
@@ -643,7 +659,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
     }
 
     // Update renderer face-target position and selection circle
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
     if (renderer) {
         renderer->setInCombat(gameHandler.isInCombat() &&
                               !gameHandler.isPlayerDead() &&
@@ -1202,9 +1218,9 @@ void GameScreen::processTargetInput(game::GameHandler& gameHandler) {
 
     // Cursor affordance: show hand cursor over interactable entities.
     if (!io.WantCaptureMouse) {
-        auto* renderer = core::Application::getInstance().getRenderer();
+        auto* renderer = services_.renderer;
         auto* camera = renderer ? renderer->getCamera() : nullptr;
-        auto* window = core::Application::getInstance().getWindow();
+        auto* window = services_.window;
         if (camera && window) {
             glm::vec2 mousePos = input.getMousePosition();
             float screenW = static_cast<float>(window->getWidth());
@@ -1258,9 +1274,9 @@ void GameScreen::processTargetInput(game::GameHandler& gameHandler) {
         constexpr float CLICK_THRESHOLD = 5.0f;  // pixels
 
         if (dragDistSq < CLICK_THRESHOLD * CLICK_THRESHOLD) {
-            auto* renderer = core::Application::getInstance().getRenderer();
+            auto* renderer = services_.renderer;
             auto* camera = renderer ? renderer->getCamera() : nullptr;
-            auto* window = core::Application::getInstance().getWindow();
+            auto* window = services_.window;
 
             if (camera && window) {
                 float screenW = static_cast<float>(window->getWidth());
@@ -1355,9 +1371,9 @@ void GameScreen::processTargetInput(game::GameHandler& gameHandler) {
 
         // If no target or right-clicking in world, try to pick one under cursor
         {
-            auto* renderer = core::Application::getInstance().getRenderer();
+            auto* renderer = services_.renderer;
             auto* camera = renderer ? renderer->getCamera() : nullptr;
-            auto* window = core::Application::getInstance().getWindow();
+            auto* window = services_.window;
             if (camera && window) {
                 // If a quest objective gameobject is under the cursor, prefer it over
                 // hostile units so quest pickups (e.g. "Bundle of Wood") are reliable.
@@ -1648,7 +1664,7 @@ void GameScreen::renderPlayerFrame(game::GameHandler& gameHandler) {
             ImGui::TextColored(ImVec4(0.9f, 0.5f, 0.2f, 1.0f), "<DND>");
             if (ImGui::IsItemHovered()) ImGui::SetTooltip("Do not disturb — /dnd to cancel");
         }
-        if (auto* ren = core::Application::getInstance().getRenderer()) {
+        if (auto* ren = services_.renderer) {
             if (auto* cam = ren->getCameraController()) {
                 if (cam->isAutoRunning()) {
                     ImGui::SameLine();
@@ -2176,7 +2192,7 @@ void GameScreen::renderPetFrame(game::GameHandler& gameHandler) {
             // Raw slot value layout (WotLK 3.3.5): low 24 bits = spell/action ID,
             // high byte = flag (0x80=autocast on, 0x40=can-autocast, 0x0C=type).
             // Built-in commands: id=2 follow, id=3 stay/move, id=5 attack.
-            auto* assetMgr = core::Application::getInstance().getAssetManager();
+            auto* assetMgr = services_.assetManager;
             const float iconSz = 20.0f;
             const float spacing = 2.0f;
             ImGui::Separator();
@@ -2279,7 +2295,7 @@ void GameScreen::renderPetFrame(game::GameHandler& gameHandler) {
                         else if (actionId == 6) tip = "Aggressive";
                         if (tip) ImGui::SetTooltip("%s", tip);
                     } else if (actionId > 6) {
-                        auto* spellAsset = core::Application::getInstance().getAssetManager();
+                        auto* spellAsset = services_.assetManager;
                         ImGui::BeginTooltip();
                         bool richOk = spellbookScreen.renderSpellInfoTooltip(actionId, gameHandler, spellAsset);
                         if (!richOk) {
@@ -2400,7 +2416,7 @@ void GameScreen::renderTargetFrame(game::GameHandler& gameHandler) {
     auto target = gameHandler.getTarget();
     if (!target) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     float frameW = 250.0f;
@@ -2839,7 +2855,7 @@ void GameScreen::renderTargetFrame(game::GameHandler& gameHandler) {
             else
                 snprintf(castLabel, sizeof(castLabel), "Casting... (%.1fs)", castLeft);
             {
-                auto* tcastAsset = core::Application::getInstance().getAssetManager();
+                auto* tcastAsset = services_.assetManager;
                 VkDescriptorSet tIcon = (tspell != 0 && tcastAsset)
                     ? getSpellIcon(tspell, tcastAsset) : VK_NULL_HANDLE;
                 if (tIcon) {
@@ -2936,7 +2952,7 @@ void GameScreen::renderTargetFrame(game::GameHandler& gameHandler) {
             if (!a.isEmpty()) activeAuras++;
         }
         if (activeAuras > 0) {
-            auto* assetMgr = core::Application::getInstance().getAssetManager();
+            auto* assetMgr = services_.assetManager;
             constexpr float ICON_SIZE = 24.0f;
             constexpr int ICONS_PER_ROW = 8;
 
@@ -3234,7 +3250,7 @@ void GameScreen::renderTargetFrame(game::GameHandler& gameHandler) {
                                 int totActive = 0;
                                 for (const auto& a : *totAuras) if (!a.isEmpty()) totActive++;
                                 if (totActive > 0) {
-                                    auto* totAsset = core::Application::getInstance().getAssetManager();
+                                    auto* totAsset = services_.assetManager;
                                     constexpr float TA_ICON = 16.0f;
                                     constexpr int   TA_PER_ROW = 8;
 
@@ -3350,7 +3366,7 @@ void GameScreen::renderFocusFrame(game::GameHandler& gameHandler) {
     auto focus = gameHandler.getFocus();
     if (!focus) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     // Position: right side of screen, mirroring the target frame on the opposite side
@@ -3652,7 +3668,7 @@ void GameScreen::renderFocusFrame(game::GameHandler& gameHandler) {
                 else
                     snprintf(castBuf, sizeof(castBuf), "Casting... (%.1fs)", rem);
                 {
-                    auto* fcAsset = core::Application::getInstance().getAssetManager();
+                    auto* fcAsset = services_.assetManager;
                     VkDescriptorSet fcIcon = (focusCast->spellId != 0 && fcAsset)
                         ? getSpellIcon(focusCast->spellId, fcAsset) : VK_NULL_HANDLE;
                     if (fcIcon) {
@@ -3678,7 +3694,7 @@ void GameScreen::renderFocusFrame(game::GameHandler& gameHandler) {
                 int activeCount = 0;
                 for (const auto& a : *focusAuras) if (!a.isEmpty()) activeCount++;
                 if (activeCount > 0) {
-                    auto* focusAsset = core::Application::getInstance().getAssetManager();
+                    auto* focusAsset = services_.assetManager;
                     constexpr float FA_ICON = 20.0f;
                     constexpr int   FA_PER_ROW = 10;
 
@@ -4349,7 +4365,7 @@ VkDescriptorSet GameScreen::getSpellIcon(uint32_t spellId, pipeline::AssetManage
     }
 
     // Upload to Vulkan via VkContext
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     auto* vkCtx = window ? window->getVkContext() : nullptr;
     if (!vkCtx) {
         spellIconCache_[spellId] = VK_NULL_HANDLE;
@@ -4456,7 +4472,7 @@ void GameScreen::renderQuestObjectiveTracker(game::GameHandler& gameHandler) {
     const auto& questLog = gameHandler.getQuestLog();
     if (questLog.empty()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     constexpr float TRACKER_W = 220.0f;
@@ -4694,12 +4710,12 @@ void GameScreen::renderNameplates(game::GameHandler& gameHandler) {
     // Reset mouseover each frame; we'll set it below when the cursor is over a nameplate
     gameHandler.setMouseoverGuid(0);
 
-    auto* appRenderer = core::Application::getInstance().getRenderer();
+    auto* appRenderer = services_.renderer;
     if (!appRenderer) return;
     rendering::Camera* camera = appRenderer->getCamera();
     if (!camera) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     if (!window) return;
     const float screenW = static_cast<float>(window->getWidth());
     const float screenH = static_cast<float>(window->getHeight());
@@ -4908,7 +4924,7 @@ void GameScreen::renderNameplates(game::GameHandler& gameHandler) {
                 // Spell icon + name above the cast bar
                 const std::string& spellName = gameHandler.getSpellName(cs->spellId);
                 {
-                    auto* castAm = core::Application::getInstance().getAssetManager();
+                    auto* castAm = services_.assetManager;
                     VkDescriptorSet castIcon = (cs->spellId && castAm)
                         ? getSpellIcon(cs->spellId, castAm) : VK_NULL_HANDLE;
                     float iconSz = cbH + 8.0f;
@@ -5301,7 +5317,7 @@ void GameScreen::renderNameplates(game::GameHandler& gameHandler) {
 // ============================================================
 
 void GameScreen::takeScreenshot(game::GameHandler& /*gameHandler*/) {
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
     if (!renderer) return;
 
     // Build path: ~/.wowee/screenshots/WoWee_YYYYMMDD_HHMMSS.png
@@ -5332,7 +5348,7 @@ void GameScreen::takeScreenshot(game::GameHandler& /*gameHandler*/) {
         sysMsg.type = game::ChatType::SYSTEM;
         sysMsg.language = game::ChatLanguage::UNIVERSAL;
         sysMsg.message = "Screenshot saved: " + path;
-        core::Application::getInstance().getGameHandler()->addLocalChatMessage(sysMsg);
+        services_.gameHandler->addLocalChatMessage(sysMsg);
     }
 }
 
@@ -5412,7 +5428,7 @@ void GameScreen::renderUIErrors(game::GameHandler& /*gameHandler*/, float deltaT
 
     if (uiErrors_.empty()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) :  720.0f;
 
@@ -5551,9 +5567,9 @@ void GameScreen::renderQuestMarkers(game::GameHandler& gameHandler) {
     const auto& statuses = gameHandler.getNpcQuestStatuses();
     if (statuses.empty()) return;
 
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
     auto* camera = renderer ? renderer->getCamera() : nullptr;
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     if (!camera || !window) return;
 
     float screenW = static_cast<float>(window->getWidth());
@@ -5629,10 +5645,10 @@ void GameScreen::renderQuestMarkers(game::GameHandler& gameHandler) {
 
 void GameScreen::renderMinimapMarkers(game::GameHandler& gameHandler) {
     const auto& statuses = gameHandler.getNpcQuestStatuses();
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
     auto* camera = renderer ? renderer->getCamera() : nullptr;
     auto* minimap = renderer ? renderer->getMinimap() : nullptr;
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     if (!camera || !minimap || !window) return;
 
     float screenW = static_cast<float>(window->getWidth());
@@ -6509,7 +6525,7 @@ void GameScreen::renderMinimapMarkers(game::GameHandler& gameHandler) {
     }
 
     auto applyMuteState = [&]() {
-        auto* activeRenderer = core::Application::getInstance().getRenderer();
+        auto* activeRenderer = services_.renderer;
         float masterScale = settingsPanel_.soundMuted_ ? 0.0f : static_cast<float>(settingsPanel_.pendingMasterVolume) / 100.0f;
         audio::AudioEngine::instance().setMasterVolume(masterScale);
         if (!activeRenderer) return;
@@ -6843,7 +6859,7 @@ void GameScreen::renderMinimapMarkers(game::GameHandler& gameHandler) {
 
     // Calendar pending invites indicator (WotLK only)
     {
-        auto* expReg = core::Application::getInstance().getExpansionRegistry();
+        auto* expReg = services_.expansionRegistry;
         bool isWotLK = expReg && expReg->getActive() && expReg->getActive()->id == "wotlk";
         if (isWotLK) {
             uint32_t calPending = gameHandler.getCalendarPendingInvites();
@@ -7197,7 +7213,7 @@ void GameScreen::loadSettings() {
             else if (key == "shadow_distance") settingsPanel_.pendingShadowDistance = std::clamp(std::stof(val), 40.0f, 500.0f);
             else if (key == "brightness") {
                 settingsPanel_.pendingBrightness = std::clamp(std::stoi(val), 0, 100);
-                if (auto* r = core::Application::getInstance().getRenderer())
+                if (auto* r = services_.renderer)
                     r->setBrightness(static_cast<float>(settingsPanel_.pendingBrightness) / 50.0f);
             }
             else if (key == "water_refraction") settingsPanel_.pendingWaterRefraction = (std::stoi(val) != 0);
@@ -7229,7 +7245,7 @@ void GameScreen::loadSettings() {
             else if (key == "camera_pivot_height") settingsPanel_.pendingPivotHeight = std::clamp(std::stof(val), 0.0f, 3.0f);
             else if (key == "fov") {
                 settingsPanel_.pendingFov = std::clamp(std::stof(val), 45.0f, 110.0f);
-                if (auto* renderer = core::Application::getInstance().getRenderer()) {
+                if (auto* renderer = services_.renderer) {
                     if (auto* camera = renderer->getCamera()) camera->setFov(settingsPanel_.pendingFov);
                 }
             }

src/ui/settings_panel.cpp

@@ -152,7 +152,7 @@ ImGui::EndChild();
 
 void SettingsPanel::renderSettingsGameplayTab(InventoryScreen& inventoryScreen,
                                                   std::function<void()> saveCallback) {
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
 ImGui::Spacing();
 
 ImGui::Text("Controls");
@@ -433,7 +433,7 @@ if (ImGui::Button("Reset to Defaults", ImVec2(-1, 0))) {
 }
 
 void SettingsPanel::renderSettingsAudioTab(std::function<void()> saveCallback) {
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
 ImGui::Spacing();
 ImGui::BeginChild("AudioSettings", ImVec2(0, 360), true);
 
@@ -599,8 +599,8 @@ void SettingsPanel::renderSettingsWindow(InventoryScreen& inventoryScreen, ChatP
                                              std::function<void()> saveCallback) {
     if (!showSettingsWindow) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
     if (!window) return;
 
     static constexpr int kResolutions[][2] = {
@@ -1045,7 +1045,7 @@ void SettingsPanel::renderSettingsWindow(InventoryScreen& inventoryScreen, ChatP
 }
 
 void SettingsPanel::applyGraphicsPreset(GraphicsPreset preset) {
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
 
     // Define preset values based on quality level
     switch (preset) {

src/ui/social_panel.cpp

@@ -86,7 +86,7 @@ void SocialPanel::renderPartyFrames(game::GameHandler& gameHandler,
                                        SpellIconFn getSpellIcon) {
     if (!gameHandler.isInGroup()) return;
 
-    auto* assetMgr = core::Application::getInstance().getAssetManager();
+    auto* assetMgr = services_.assetManager;
     const auto& partyData = gameHandler.getPartyData();
     const bool isRaid = (partyData.groupType == 1);
     float frameY = 120.0f;
@@ -117,7 +117,7 @@ void SocialPanel::renderPartyFrames(game::GameHandler& gameHandler,
         float winW = activeSgs * (CELL_W + CELL_PAD) + CELL_PAD + 8.0f;
         float winH = MAX_PER_GROUP * (CELL_H + CELL_PAD) + CELL_PAD + 20.0f;
 
-        auto* window = core::Application::getInstance().getWindow();
+        auto* window = services_.window;
         float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
         float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
         float raidX = (screenW - winW) / 2.0f;
@@ -757,7 +757,7 @@ void SocialPanel::renderPartyFrames(game::GameHandler& gameHandler,
 void SocialPanel::renderBossFrames(game::GameHandler& gameHandler,
                                       SpellbookScreen& spellbookScreen,
                                       SpellIconFn getSpellIcon) {
-    auto* assetMgr = core::Application::getInstance().getAssetManager();
+    auto* assetMgr = services_.assetManager;
 
     // Collect active boss unit slots
     struct BossSlot { uint32_t slot; uint64_t guid; };
@@ -1143,11 +1143,11 @@ void SocialPanel::renderGuildRoster(game::GameHandler& gameHandler,
 
     // Get zone manager for name lookup
     game::ZoneManager* zoneManager = nullptr;
-    if (auto* renderer = core::Application::getInstance().getRenderer()) {
+    if (auto* renderer = services_.renderer) {
         zoneManager = renderer->getZoneManager();
     }
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -1683,7 +1683,7 @@ void SocialPanel::renderSocialFrame(game::GameHandler& gameHandler,
     for (const auto& c : contacts)
         if (c.isFriend() && c.isOnline()) ++onlineCount;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW - 230.0f, 240.0f), ImGuiCond_Once);
@@ -1705,7 +1705,7 @@ void SocialPanel::renderSocialFrame(game::GameHandler& gameHandler,
 
         // Get zone manager for area name lookups
         game::ZoneManager* socialZoneMgr = nullptr;
-        if (auto* rend = core::Application::getInstance().getRenderer())
+        if (auto* rend = services_.renderer)
             socialZoneMgr = rend->getZoneManager();
 
         if (ImGui::BeginTabBar("##SocialTabs")) {
@@ -2048,7 +2048,7 @@ void SocialPanel::renderDungeonFinderWindow(game::GameHandler& gameHandler,
 
     if (!showDungeonFinder_) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth())  : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) :  720.0f;
 
@@ -2423,7 +2423,7 @@ void SocialPanel::renderInspectWindow(game::GameHandler& gameHandler,
     // Lazy-load SpellItemEnchantment.dbc for enchant name lookup
     static std::unordered_map<uint32_t, std::string> s_enchantNames;
     static bool s_enchantDbLoaded = false;
-    auto* assetMgrEnchant = core::Application::getInstance().getAssetManager();
+    auto* assetMgrEnchant = services_.assetManager;
     if (!s_enchantDbLoaded && assetMgrEnchant && assetMgrEnchant->isInitialized()) {
         s_enchantDbLoaded = true;
         auto dbc = assetMgrEnchant->loadDBC("SpellItemEnchantment.dbc");

src/ui/toast_manager.cpp

@@ -128,7 +128,7 @@ void ToastManager::setupCallbacks(game::GameHandler& gameHandler) {
 // ---------------------------------------------------------------------------
 void ToastManager::renderEarlyToasts(float deltaTime, game::GameHandler& gameHandler) {
     // Zone entry detection — fire a toast when the renderer's zone name changes
-    if (auto* rend = core::Application::getInstance().getRenderer()) {
+    if (auto* rend = services_.renderer) {
         const std::string& curZone = rend->getCurrentZoneName();
         if (!curZone.empty() && curZone != lastKnownZone_) {
             if (!lastKnownZone_.empty()) {
@@ -175,7 +175,7 @@ void ToastManager::renderRepToasts(float deltaTime) {
 
     if (repToasts_.empty()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -254,7 +254,7 @@ void ToastManager::renderQuestCompleteToasts(float deltaTime) {
 
     if (questCompleteToasts_.empty()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -329,7 +329,7 @@ void ToastManager::renderZoneToasts(float deltaTime) {
 
     if (zoneToasts_.empty()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImDrawList* draw = ImGui::GetForegroundDrawList();
@@ -395,7 +395,7 @@ void ToastManager::renderAreaTriggerToasts(float deltaTime, game::GameHandler& g
         areaTriggerToasts_.end());
     if (areaTriggerToasts_.empty()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth())  : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) :  720.0f;
 
@@ -461,7 +461,7 @@ void ToastManager::triggerDing(uint32_t newLevel, uint32_t hpDelta, uint32_t man
     dingStats_[3]  = intel;
     dingStats_[4]  = spi;
 
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
     if (renderer) {
         if (auto* sfx = renderer->getUiSoundManager()) {
             sfx->playLevelUp();
@@ -550,7 +550,7 @@ void ToastManager::triggerAchievementToast(uint32_t achievementId, std::string n
     achievementToastTimer_ = ACHIEVEMENT_TOAST_DURATION;
 
     // Play a UI sound if available
-    auto* renderer = core::Application::getInstance().getRenderer();
+    auto* renderer = services_.renderer;
     if (renderer) {
         if (auto* sfx = renderer->getUiSoundManager()) {
             sfx->playAchievementAlert();
@@ -565,7 +565,7 @@ void ToastManager::renderAchievementToast() {
     achievementToastTimer_ -= dt;
     if (achievementToastTimer_ < 0.0f) achievementToastTimer_ = 0.0f;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth())  : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) :  720.0f;
 
@@ -641,7 +641,7 @@ void ToastManager::renderDiscoveryToast() {
         alpha = 1.0f;
     alpha = std::clamp(alpha, 0.0f, 1.0f);
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth())  : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) :  720.0f;
 
@@ -1183,7 +1183,7 @@ void ToastManager::renderZoneText(game::GameHandler& gameHandler) {
 
     // Also poll the renderer for zone name changes (covers map-level transitions
     // where worldStateZoneId may not change immediately).
-    auto* appRenderer = core::Application::getInstance().getRenderer();
+    auto* appRenderer = services_.renderer;
     if (appRenderer) {
         const std::string& zoneName = appRenderer->getCurrentZoneName();
         if (!zoneName.empty() && zoneName != lastKnownZoneName_) {
@@ -1202,7 +1202,7 @@ void ToastManager::renderZoneText(game::GameHandler& gameHandler) {
     zoneTextTimer_ -= dt;
     if (zoneTextTimer_ < 0.0f) zoneTextTimer_ = 0.0f;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth())  : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) :  720.0f;
 

src/ui/window_manager.cpp

@@ -83,7 +83,7 @@ void WindowManager::renderLootWindow(game::GameHandler& gameHandler,
                               ChatPanel& chatPanel) {
     if (!gameHandler.isLootWindowOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 150, 200), ImGuiCond_Appearing);
@@ -273,7 +273,7 @@ void WindowManager::renderGossipWindow(game::GameHandler& gameHandler,
                                ChatPanel& chatPanel) {
     if (!gameHandler.isGossipWindowOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 200, 150), ImGuiCond_Appearing);
@@ -445,7 +445,7 @@ void WindowManager::renderQuestDetailsWindow(game::GameHandler& gameHandler,
                                           InventoryScreen& inventoryScreen) {
     if (!gameHandler.isQuestDetailsOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -569,7 +569,7 @@ void WindowManager::renderQuestRequestItemsWindow(game::GameHandler& gameHandler
                                                InventoryScreen& inventoryScreen) {
     if (!gameHandler.isQuestRequestItemsOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -672,7 +672,7 @@ void WindowManager::renderQuestOfferRewardWindow(game::GameHandler& gameHandler,
                                               InventoryScreen& inventoryScreen) {
     if (!gameHandler.isQuestOfferRewardOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -845,7 +845,7 @@ void WindowManager::renderQuestOfferRewardWindow(game::GameHandler& gameHandler,
 void WindowManager::loadExtendedCostDBC() {
     if (extendedCostDbLoaded_) return;
     extendedCostDbLoaded_ = true;
-    auto* am = core::Application::getInstance().getAssetManager();
+    auto* am = services_.assetManager;
     if (!am || !am->isInitialized()) return;
     auto dbc = am->loadDBC("ItemExtendedCost.dbc");
     if (!dbc || !dbc->isLoaded()) return;
@@ -898,7 +898,7 @@ void WindowManager::renderVendorWindow(game::GameHandler& gameHandler,
                                ChatPanel& chatPanel) {
     if (!gameHandler.isVendorWindowOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 200, 100), ImGuiCond_Appearing);
@@ -1236,9 +1236,9 @@ void WindowManager::renderTrainerWindow(game::GameHandler& gameHandler,
                                 SpellIconFn getSpellIcon) {
     if (!gameHandler.isTrainerWindowOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
-    auto* assetMgr = core::Application::getInstance().getAssetManager();
+    auto* assetMgr = services_.assetManager;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 225, 100), ImGuiCond_Appearing);
     ImGui::SetNextWindowSize(ImVec2(500, 450), ImGuiCond_Appearing);
@@ -1701,7 +1701,7 @@ void WindowManager::renderEscapeMenu(SettingsPanel& settingsPanel) {
             settingsPanel.showEscapeSettingsNotice = false;
         }
         if (ImGui::Button("Quit", ImVec2(-1, 0))) {
-            auto* renderer = core::Application::getInstance().getRenderer();
+            auto* renderer = services_.renderer;
             if (renderer) {
                 if (auto* music = renderer->getMusicManager()) {
                     music->stopMusic(0.0f);
@@ -1763,7 +1763,7 @@ void WindowManager::renderBarberShopWindow(game::GameHandler& gameHandler) {
     int maxHairColor = static_cast<int>(game::getMaxHairColor(raceEnum, gender));
     int maxFacialHair = static_cast<int>(game::getMaxFacialFeature(raceEnum, gender));
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
     float winW = 300.0f;
@@ -1847,7 +1847,7 @@ void WindowManager::renderBarberShopWindow(game::GameHandler& gameHandler) {
 void WindowManager::renderStableWindow(game::GameHandler& gameHandler) {
     if (!gameHandler.isStableWindowOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth())  : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -1960,7 +1960,7 @@ void WindowManager::renderStableWindow(game::GameHandler& gameHandler) {
 void WindowManager::renderTaxiWindow(game::GameHandler& gameHandler) {
     if (!gameHandler.isTaxiWindowOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 200, 150), ImGuiCond_Appearing);
@@ -2058,7 +2058,7 @@ void WindowManager::renderTaxiWindow(game::GameHandler& gameHandler) {
 void WindowManager::renderLogoutCountdown(game::GameHandler& gameHandler) {
     if (!gameHandler.isLoggingOut()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth())  : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -2127,7 +2127,7 @@ void WindowManager::renderDeathScreen(game::GameHandler& gameHandler) {
         deathElapsed_ += dt;
     }
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -2216,7 +2216,7 @@ void WindowManager::renderDeathScreen(game::GameHandler& gameHandler) {
 void WindowManager::renderReclaimCorpseButton(game::GameHandler& gameHandler) {
     if (!gameHandler.isPlayerGhost() || !gameHandler.canReclaimCorpse()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -2274,7 +2274,7 @@ void WindowManager::renderMailWindow(game::GameHandler& gameHandler,
                              ChatPanel& chatPanel) {
     if (!gameHandler.isMailboxOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
 
     ImGui::SetNextWindowPos(ImVec2(screenW / 2 - 250, 80), ImGuiCond_Appearing);
@@ -2553,7 +2553,7 @@ void WindowManager::renderMailComposeWindow(game::GameHandler& gameHandler,
                                    InventoryScreen& inventoryScreen) {
     if (!gameHandler.isMailComposeOpen()) return;
 
-    auto* window = core::Application::getInstance().getWindow();
+    auto* window = services_.window;
     float screenW = window ? static_cast<float>(window->getWidth()) : 1280.0f;
     float screenH = window ? static_cast<float>(window->getHeight()) : 720.0f;
 
@@ -3769,7 +3769,7 @@ void WindowManager::renderAchievementWindow(game::GameHandler& gameHandler) {
             static bool s_criteriaDataLoaded = false;
             if (!s_criteriaDataLoaded) {
                 s_criteriaDataLoaded = true;
-                auto* am = core::Application::getInstance().getAssetManager();
+                auto* am = services_.assetManager;
                 if (am && am->isInitialized()) {
                     auto dbc = am->loadDBC("AchievementCriteria.dbc");
                     if (dbc && dbc->isLoaded() && dbc->getFieldCount() >= 10) {