fix: validate displayId range and skip missing equipment textures

Reject displayId values >100k (corrupted update-field data) to avoid
pointless DBC lookups and log spam. Add fileExists() guard before
using base texture path in 4 equipment compositing code paths that
were falling through without checking, causing excessive "Texture not
found" warnings when users have incomplete MPQ extractions.

src/core/entity_spawner.cpp

@@ -649,6 +649,14 @@ void EntitySpawner::buildCreatureDisplayLookups() {
 }
 
 std::string EntitySpawner::getModelPathForDisplayId(uint32_t displayId) const {
+    // WotLK 3.3.5a CreatureDisplayInfo tops out around ~32000; values far
+    // beyond that are corrupted update-field data or packet parse errors.
+    // Silently reject to avoid pointless DBC lookups and log spam.
+    constexpr uint32_t kMaxReasonableDisplayId = 100000;
+    if (displayId == 0 || displayId > kMaxReasonableDisplayId) {
+        return "";
+    }
+
     if (displayId == 30412) return "Creature\\Gryphon\\Gryphon.m2";
     if (displayId == 30413) return "Creature\\Wyvern\\Wyvern.m2";
 

src/core/entity_spawner_player.cpp

@@ -769,10 +769,12 @@ void EntitySpawner::setOnlinePlayerEquipment(uint64_t guid,
             std::string base = "Item\\TextureComponents\\" + std::string(componentDirs[region]) + "\\" + texName;
             std::string genderPath = base + (isFemale ? "_F.blp" : "_M.blp");
             std::string unisexPath = base + "_U.blp";
+            std::string basePath = base + ".blp";
             std::string fullPath;
             if (assetManager_->fileExists(genderPath)) fullPath = genderPath;
             else if (assetManager_->fileExists(unisexPath)) fullPath = unisexPath;
-            else fullPath = base + ".blp";
+            else if (assetManager_->fileExists(basePath)) fullPath = basePath;
+            else continue;
 
             regionLayers.emplace_back(region, fullPath);
         }

src/core/entity_spawner_processing.cpp

@@ -463,9 +463,10 @@ void EntitySpawner::processCreatureSpawnQueue(bool unlimited) {
                                             std::string(compDirs[region]) + "\\" + texName;
                                         std::string gp = base + (isFem ? "_F.blp" : "_M.blp");
                                         std::string up = base + "_U.blp";
+                                        std::string bp = base + ".blp";
                                         if (am->fileExists(gp)) displaySkinPaths.push_back(gp);
                                         else if (am->fileExists(up)) displaySkinPaths.push_back(up);
-                                        else displaySkinPaths.push_back(base + ".blp");
+                                        else if (am->fileExists(bp)) displaySkinPaths.push_back(bp);
                                     }
                                 }
                             }
@@ -673,9 +674,10 @@ std::vector<std::string> EntitySpawner::resolveEquipmentTexturePaths(uint64_t gu
                 std::string(componentDirs[region]) + "\\" + texName;
             std::string genderPath = base + (isFemale ? "_F.blp" : "_M.blp");
             std::string unisexPath = base + "_U.blp";
+            std::string basePath = base + ".blp";
             if (assetManager_->fileExists(genderPath)) paths.push_back(genderPath);
             else if (assetManager_->fileExists(unisexPath)) paths.push_back(unisexPath);
-            else paths.push_back(base + ".blp");
+            else if (assetManager_->fileExists(basePath)) paths.push_back(basePath);
         }
     }
     return paths;

src/ui/game_screen_hud.cpp

@@ -315,9 +315,10 @@ void GameScreen::updateCharacterTextures(game::Inventory& inventory) {
                 fullPath = genderPath;
             } else if (assetManager->fileExists(unisexPath)) {
                 fullPath = unisexPath;
-            } else {
-                // Last resort: try without suffix
+            } else if (assetManager->fileExists(base + ".blp")) {
                 fullPath = base + ".blp";
+            } else {
+                continue;
             }
             regionLayers.emplace_back(region, fullPath);
         }