Fix AppImage verify step to inspect the PyInstaller binary.

The squashfs wrapper does not contain module path strings reliably.

Co-authored-by: Cursor <[email protected]>

build_appimage.sh

@@ -75,7 +75,7 @@ else
   exit 1
 fi
 
-if ! strings "$OUT" | grep -q "engine.tvdb_client"; then
-  echo "ERROR: Built AppImage is missing TheTVDB modules." >&2
+if ! strings "dist/$EXE_NAME/$EXE_NAME" | grep -q "engine.tvdb_client"; then
+  echo "ERROR: Built executable is missing TheTVDB modules." >&2
   exit 1
 fi