Fix release packaging and macOS stack overflow crash

- Fix StormLib package name: libstormlib-dev → libstorm-dev (correct
  Ubuntu package name) across all CI workflows and extract_assets.sh
- Build StormLib from source on Windows CI (no MSYS2 package exists),
  ensuring asset_extract.exe is included in release archives
- Update extract_assets.sh/.ps1 to prefer pre-built asset_extract
  binary next to the script (release archives) before trying build dir
- Move ADTTerrain allocations from stack to heap in prepareTile() to
  fix stack overflow on macOS (worker threads default to 512 KB stack,
  two ADTTerrain structs ≈ 560 KB exceeded that)

extract_assets.sh

@@ -17,9 +17,15 @@ set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 BUILD_DIR="${SCRIPT_DIR}/build"
-BINARY="${BUILD_DIR}/bin/asset_extract"
 OUTPUT_DIR="${SCRIPT_DIR}/Data"
 
+# Prefer pre-built binary next to this script (release archives), then build dir
+if [ -x "${SCRIPT_DIR}/asset_extract" ]; then
+    BINARY="${SCRIPT_DIR}/asset_extract"
+else
+    BINARY="${BUILD_DIR}/bin/asset_extract"
+fi
+
 # --- Validate arguments ---
 if [ $# -lt 1 ]; then
     echo "Usage: $0 /path/to/WoW/Data [classic|turtle|tbc|wotlk]"
@@ -73,7 +79,7 @@ if [ ! -f "$BINARY" ]; then
     fi
     if [ "$STORMLIB_FOUND" = false ]; then
         echo "Error: StormLib not found."
-        echo "  Ubuntu/Debian: sudo apt install libstormlib-dev"
+        echo "  Ubuntu/Debian: sudo apt install libstorm-dev"
         echo "  macOS:         brew install stormlib"
         echo "  From source:   https://github.com/ladislav-zezula/StormLib"
         exit 1